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(17beta)-17-[(5R)-2-(2-chlorophenyl)-4,5-dihydro-1,3-oxazol-5-yl]androst-4-en-3-one
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(17beta)-17-[(5R)-2-(3-chlorophenyl)-4,5-dihydro-1,3-oxazol-5-yl]androst-4-en-3-one
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(17beta)-17-[(5R)-2-(4-bromophenyl)-4,5-dihydro-1,3-oxazol-5-yl]androst-4-en-3-one
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(17beta)-17-[(5R)-2-(4-chlorophenyl)-4,5-dihydro-1,3-oxazol-5-yl]androst-4-en-3-one
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(17beta)-17-[(5R)-2-(4-nitrophenyl)-4,5-dihydro-1,3-oxazol-5-yl]androst-4-en-3-one
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(17beta)-17-[(5R)-2-phenyl-4,5-dihydro-1,3-oxazol-5-yl]androst-4-en-3-one
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(2S,4aR,4bS,6aS,6bR,7S,9aS,10aS,10bS)-4a,6a,7-trimethyl-2,3,4,4a,4b,5,6,6a,6b,7,9,9a,10,10a,10b,11-hexadecahydro-1H-naphtho[2',1':4,5]indeno[2,1-c][1,2]oxazol-2-ol
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(2S,4aR,4bS,6aS,6bS,7S,10aS,10bS)-4a,6a,7-trimethyl-8-(4-methylphenyl)-1,2,3,4,4a,4b,5,6,6a,6b,7,8,10,10a,10b,11-hexadecahydronaphtho[2',1':4,5]indeno[2,1-c]pyrazol-2-ol
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(3beta,17beta)-17-[(5R)-2-(3-chlorophenyl)-4,5-dihydro-1,3-oxazol-5-yl]androst-5-en-3-ol
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(3beta,17beta)-17-[(5R)-2-(4-nitrophenyl)-4,5-dihydro-1,3-oxazol-5-yl]androst-5-en-3-ol
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(3beta,17beta)-17-[2-(4-chlorophenyl)-5,6-dihydro-4H-1,3-oxazin-4-yl]androst-5-en-3-ol
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decreases enzyme activity by 70% at 50 µM
(5'R)-17beta-[2-(2-chlorophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3-one
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(5'R)-17beta-[2-(2-chlorophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3beta-ol
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(5'R)-17beta-[2-(3-chlorophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3-one
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(5'R)-17beta-[2-(3-chlorophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3beta-ol
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(5'R)-17beta-[2-(4-bromophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3-one
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(5'R)-17beta-[2-(4-bromophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3beta-ol
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(5'R)-17beta-[2-(4-chlorophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3-one
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(5'R)-17beta-[2-(4-chlorophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3beta-ol
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(5'R)-17beta-[2-(4-fluorophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3-one
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(5'R)-17beta-[2-(4-nitrophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3-one
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(5'R)-17beta-[2-(4-nitrophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3beta-ol
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(5'R)-17beta-[2-phenyl-4,5-dihydrooxazol-5-yl]androst-5-en-3-one
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(S)-orteronel
three times more inhibitory toward the conversion of 17alpha-hydroxypregnenolone to dehydroepiandrosterone than toward the 17alpha-hydroxylation of pregnenolone. The (S)-enantiomer of orteronel is more inhibitory than the (R) enantiomer
1-(3-phenylpropyl)-1H-imidazole
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1-(4-bromobenzyl)-1H-imidazole
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1-(4-iodo-benzyl)-1H-imidazole
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1-(4-phenylbutyl)-1H-imidazole
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1-(5-phenylpentyl)-1H-imidazole
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1-(7-phenyl-heptyl)-1H-imidazole
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1-[3-(4-bromo-phenyl)-propyl]-1H-imidazole
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1-[3-(4-chlorophenyl)-propyl]-1H-imidazole
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1-[3-(4-fluorophenyl)-propyl]-1H-imidazole
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1-[5-(4-bromo-phenyl)-pentyl]-1H-imidazole
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1-[5-(4-chlorophenyl)-pentyl]-1H-imidazole
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1-[5-(4-fluorophenyl)-pentyl]-1H-imidazole
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1-[7-(4-fluorophenyl)-heptyl]-1H-imidazole
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17(E)-picolinyliden-androst-4-en-3beta-ol
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17(E)-picolinyliden-androst-5-en-3beta-ol
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17-(1H-1,2,3-triazol-1-yl)androsta-4,16-dien-3-one
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VN/85-1
17-(1H-imidazole-1-yl)androsta-4,16-dien-3-one
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VN/108-1
17beta-(1-p-chlorophenyl-3-pyrazolyl)androst-4-en-3-one
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91% relative conversion at 0.05 mM
17beta-(1-p-chlorophenyl-3-pyrazolyl)androst-5-en-3beta-ol
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74% relative conversion at 0.05 mM
17beta-(1-p-chlorophenyl-5-pyrazolyl)androst-4-en-3-one
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78% relative conversion at 0.05 mM
17beta-(1-p-chlorophenyl-5-pyrazolyl)androst-5-en-3beta-ol
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17beta-(1-p-cyanophenyl-3-pyrazolyl)androst-4-en-3-one
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34% relative conversion at 0.05 mM
17beta-(1-p-cyanophenyl-3-pyrazolyl)androst-5-en-3beta-ol
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17beta-(1-p-cyanophenyl-5-pyrazolyl)androst-4-en-3-one
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69% relative conversio at 0.05 mMn
17beta-(1-p-cyanophenyl-5-pyrazolyl)androst-5-en-3beta-ol
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17beta-(1-p-methoxyphenyl-3-pyrazolyl)androst-4-en-3-one
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54% relative conversion at 0.05 mM
17beta-(1-p-methoxyphenyl-3-pyrazolyl)androst-5-en-3beta-ol
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95% relative conversion at 0.05 mM
17beta-(1-p-methoxyphenyl-5-pyrazolyl)androst-4-en-3-one
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91% relative conversion at 0.05 mM
17beta-(1-p-methoxyphenyl-5-pyrazolyl)androst-5-en-3beta-ol
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17beta-(1-p-tolyl-3-pyrazolyl)androst-4-en-3-one
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92% relative conversion at 0.05 mM
17beta-(1-p-tolyl-5-pyrazolyl)androst-4-en-3-one
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86% relative conversion at 0.05 mM
17beta-(1-p-tolyl-5-pyrazolyl)androst-5-en-3beta-ol
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89% relative conversion at 0.05 mM
17beta-(1-p-tolylphenyl-3-pyrazolyl)androst-5-en-3beta-
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17beta-(1-p-tolylphenyl-3-pyrazolyl)androst-5-en-3beta-ol
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93% relative conversion at 0.05 mM
17beta-(1-p-tolylphenyl-5-pyrazolyl)androst-5-en-3beta-
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17beta-(1-phenyl-3-pyrazolyl)androst-4-en-3-one
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86% relative conversion at 0.05 mM
17beta-(1-phenyl-3-pyrazolyl)androst-5-en-3beta-ol
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65% relative conversion at 0.05 mM
17beta-(1-phenyl-5-pyrazolyl)androst-4-en-3-one
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87% relative conversion at 0.05 mM
17beta-(1-phenyl-5-pyrazolyl)androst-5-en-3beta-ol
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92% relative conversion at 0.05 mM
17beta-(2-oxazolidon-5-yl)-androst-4-en-3-one
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17beta-(2-oxazolidon-5-yl)androst-5-en-3beta-ol
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17beta-[3-(N-3,5-dimethylphenyl)-2-oxazolidon-5-yl]androst-4-en-3-one
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17beta-[3-(N-3,5-dimethylphenyl)-2-oxazolidon-5-yl]androst-5-en-3beta-ol
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17beta-[3-(N-4-bromophenyl)-2-oxazolidon-5-yl]androst-4-en-3-one
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17beta-[3-(N-4-bromophenyl)-2-oxazolidon-5-yl]androst-5-en-3beta-ol
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17beta-[3-(N-4-chlorophenyl)-2-oxazolidon-5-yl]androst-4-en-3-one
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17beta-[3-(N-4-chlorophenyl)-2-oxazolidon-5-yl]androst-5-en-3beta-ol
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17beta-[3-(N-4-fluorophenyl)-2-oxazolidon-5-yl]androst-4-en-3-one
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17beta-[3-(N-4-fluorophenyl)-2-oxazolidon-5-yl]androst-5-en-3beta-ol
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17beta-[3-(N-4-methoxyphenyl)-2-oxazolidon-5-yl]androst-4-en-3-one
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17beta-[3-(N-4-methoxyphenyl)-2-oxazolidon-5-yl]androst-5-en-3beta-ol
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17beta-[3-(N-phenyl)-2-oxazolidon-5-yl]androst-4-en-3-one
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17beta-[3-(N-phenyl)-2-oxazolidon-5-yl]androst-5-en-3beta-ol
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2'-[[(E)-3beta-hydroxyandrost-5-en-17-ylidene]methyl]-4',4'-dimethyl-4',5'-dihydro-1',3'-oxazole
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2'-[[(E)-3beta-hydroxyandrost-5-en-17-ylidene]methyl]-4',5'-dihydro-1',3'-oxazole
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2-fluoro-4-[5-(pyridin-4-yl)-5,6,7,8-tetrahydronaphthalen-2-yl]phenol
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2-fluoro-4-[5-(pyridin-4-yl)-7,8-dihydronaphthalen-2-yl]phenol
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3-[5-(4-fluorophenyl)-2,3-dihydro-1H-inden-1-yl]pyridine
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3-[6-(4-fluorophenyl)-1H-inden-3-yl]pyridine
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3beta-acetoxy-21-chloropregn-5-ene-20beta-N-phenylurethane
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3beta-acetoxy-5alpha,6beta,17alpha,21-tetrabromo-pregnane-20-one
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3beta-hydroxy-17-(1H-1,2,3-triazol-1-yl)androsta-5,16-diene
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VN/87-1
3beta-hydroxy-17-(1H-benzimidazol-1-yl)androsta-5,16-diene
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VN/124-1
3beta-hydroxy-17-(1H-benzimidazole-1-yl)androsta-5,16-diene
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VN/124-1
3beta-hydroxy-17-(50-[30-methyl]-10,20,40-oxadiazolyl)androst-5,16-diene
4-(1H-imidazol-1-ylmethyl)-7-[(3-methylbenzyl)oxy]-2H-chromen-2-one
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4-(1H-imidazol-1-ylmethyl)-7-[[3-(trifluoromethyl)benzyl]oxy]-2Hchromen-2-one
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4-(1H-imidazol-1-ylmethyl)phenyl 4-(trifluoromethyl)benzenesulfonate
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4-(1H-imidazol-1-ylmethyl)phenyl 4-bromobenzenesulfonate
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4-(1H-imidazol-1-ylmethyl)phenyl 4-chlorobenzenesulfonate
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4-(1H-imidazol-1-ylmethyl)phenyl 4-fluorobenzenesulfonate
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4-(1H-imidazol-1-ylmethyl)phenyl 4-iodobenzenesulfonate
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4-(1H-imidazol-1-ylmethyl)phenyl 4-methoxybenzenesulfonate
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4-(1H-imidazol-1-ylmethyl)phenyl 4-nitrobenzenesulfonate
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4-(1H-imidazol-1-ylmethylphenyl)-4-toluenesulfonate
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4-iodobenzyl imidazole
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4-nonylphenol
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strong inhibitory effect at 0.1 mM
4-[5-(4-fluorophenyl)-2,3-dihydro-1H-inden-1-yl]pyridine
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4-[5-(pyridin-4-yl)-5,6,7,8-tetrahydronaphthalen-2-yl]benzene-1,2-diol
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4-[5-(pyridin-4-yl)-7,8-dihydronaphthalen-2-yl]benzene-1,2-diol
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4-[6-(3,4-difluorophenyl)-1,2,3,4-tetrahydronaphthalen-1-yl]pyridine
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4-[6-(3,4-difluorophenyl)-3,4-dihydronaphthalen-1-yl]pyridine
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4-[6-(4-fluorophenyl)-1,2,3,4-tetrahydronaphthalen-1-yl]pyridine
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4-[6-(4-fluorophenyl)-1H-inden-3-yl]pyridine
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4-[6-(4-fluorophenyl)-3,4-dihydronaphthalen-1-yl]pyridine
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4-[6-(4-methoxyphenyl)-1H-inden-3-yl]pyridine
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5-(4-fluorophenyl)-1-(pyridin-3-yl)-2,3-dihydro-1H-inden-1-ol
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6-(3,4-difluorophenyl)-1-(pyridin-3-yl)-1,2,3,4-tetrahydronaphthalen-1-ol
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6-(3-fluoro-4-methoxyphenyl)-1-(pyridin-3-yl)-1,2,3,4-tetrahydronaphthalen-1-ol
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7-[(3-chlorobenzyl)oxy]-4-(1H-imidazol-1-ylmethyl)-2H-chromen-2-one
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7-[(3-fluorobenzyl)oxy]-4-(1H-imidazol-1-ylmethyl)-2H-chromen-2-one
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cyclopregnenolone
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i.e. 3alpha5-cyclo-6beta-methoxy-5alpha-pregnane-20-one
estradiol-17beta
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concentration of 0.3 mM both, testicular and male duodenal enzyme with exogenous 17alpha-hydroxyprogesterone as substrate are inhibited by 30-40%
Insulin
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acute and selective
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O-3beta-acetoxyandrost-5,16-diene-17-acyl-p-methoxybenzamidoxime
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compound displays in vitro cytotoxic activity against HeLa cells, MCF-7 cells, A-2780 cells and A-431 cells which are higher than or comparable to that of the reference cisplatin
O-3beta-acetoxyandrost-5,16-diene-17-acylacetamidoxime
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compound displays in vitro cytotoxic activity against HeLa cells, MCF-7 cells, A-2780 cells and A-431 cells which are higher than or comparable to that of the reference cisplatin
Promegestone
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competitive
tetrabromobisphenol A
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VT-464
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selective suppression of androgen synthesis through CYP17 lyase inhibition
3beta-hydroxy-17-(50-[30-methyl]-10,20,40-oxadiazolyl)androst-5,16-diene
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compound displays in vitro cytotoxic activity against HeLa cells, MCF-7 cells, A-2780 cells and A-431 cells which are higher than or comparable to that of the reference cisplatin
3beta-hydroxy-17-(50-[30-methyl]-10,20,40-oxadiazolyl)androst-5,16-diene
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abiraterone
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abiraterone
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i.e. 17-(pyridin-3-yl)androsta-5,16-dien-3beta-ol
abiraterone
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i.e. 17-(3-pyridyl)androsta-5,16-dien-3beta-ol
flusilazole
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ketoconazole
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strong inhibitory effect at 0.1 mM
ketoconazole
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i.e. cis-1-acetyl-4-[4[[2,4-(dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]-methoxy]phenyl]piperazine
ketoconazole
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competitve
SU10603
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SU10603
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CYP17 chimeric mouse brains incubated in the presence of SU10603, do not form dehydroepiandrosterone
tebuconazole
highest affinity for human CYP17A1
additional information
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not inhibited by acetyl pregnenolone
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additional information
itraconazole has no effect on human CYP17A1
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additional information
no effect by valproic acid, triclosan, tebuconazole, bisphenol A, tetrabromobisphenol A, methoxyacetic acid, cyclosporin A, endosulfan, methylmercury, perfluorobutane sulfonic acid, perfluorohexane sulfonic acid, perfluorononanoic acid, perfluorooctanoic acid, perfluorooctane sulfate, glufosinate ammonium, dibutyl phthalate, diethylhexyl phthalate, mono-ethylhexyl phthalate, epicatechin, genistein, D-mannitol, diethylstilbestrol, atrazine, retinoic acid, and 4-hydroxy-androstenedione
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additional information
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no effect by valproic acid, triclosan, tebuconazole, bisphenol A, tetrabromobisphenol A, methoxyacetic acid, cyclosporin A, endosulfan, methylmercury, perfluorobutane sulfonic acid, perfluorohexane sulfonic acid, perfluorononanoic acid, perfluorooctanoic acid, perfluorooctane sulfate, glufosinate ammonium, dibutyl phthalate, diethylhexyl phthalate, mono-ethylhexyl phthalate, epicatechin, genistein, D-mannitol, diethylstilbestrol, atrazine, retinoic acid, and 4-hydroxy-androstenedione
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additional information
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overview
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additional information
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inhibitor development and synthesis, inhibitory potencies of compounds, overview
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additional information
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no enzyme inhibition by (5'R)-17beta-[2-phenyl-4,5-dihydrooxazol-5-yl]androst-5-en-3beta-ol and (5'R)-17beta-[2-(4-fluoroophenyl)-4,5-dihydrooxazol-5-yl]androst-5-en-3beta-ol
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additional information
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C17,20-lyase activity is not inhibited by 0.05 mM 17beta-(1-p-chlorophenyl-3-pyrazolyl)androst-5-en-3beta-ol, 17beta-(1-p-cyanophenyl-3-pyrazolyl)androst-5-en-3beta-ol, 17beta-(1-p-cyanophenyl-5-pyrazolyl)androst-5-en-3beta-ol and 17beta-(1-p-methoxyphenyl-5-pyrazolyl)androst-5-en-3beta-ol; inhibitory effects of synthesized 3beta-hydroxy-17beta-exo-heterocyclic steroids and the corresponding DELTA4-3-ketosteroids on the testicular C17,20-lyase activity are analyzed by an in vitro radioligand incubation technique, overview
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additional information
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picolyl derivatives exert no significant inhibition either on the 17alpha-hydroxylase or the C17,20-lyase activities
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additional information
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no effect by valproic acid, triclosan, bisphenol A, methoxyacetic acid, cyclosporin A, forskolin, endosulfan, dioctyltin chloride, perfluorobutane sulfonic acid, perfluorohexane sulfonic acid, perfluorononanoic acid, perfluorooctanoic acid, perfluorooctane sulfate, glufosinate ammonium, dibutyl phthalate, diethylhexyl phthalate, mono-ethylhexyl phthalate, epicatechin, genistein, D-mannitol, atrazine, retinoic acid, and 4-hydroxy-androstenedione
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