Synthesis and testosterone 5α-reductase inhibitory activity of 11-substituted 4-aza-5α-androstane compounds
摘要:
11 alpha-Acetoxy-, 11 alpha-hydroxy-, 11 beta-hydroxy-, and 11-oxo-4-aza-5 alpha-androstane compounds with an N-diphenylmethylcarbamoyl moiety at the C-17 position were synthesized and their inhibitory activities against rat and human testosterone 5 alpha-reductase were tested. Introduction of the 11 alpha-acetoxy, 11 alpha-hydroxy, 11 beta-hydroxy and 11-oxo groups into 4-aza-5 alpha-androstane compounds reduced the inhibitory activity against rat and human 5 alpha-reductase. The 11 alpha-acetoxy-4-aza-5 alpha-androstane compound in particular lost almost all its activity. However, several compounds with an 11 beta-hydroxy or 11-oxo group showed inhibitory activities comparable to MK-906. The 4-methyl-11 beta-hydroxy-4-aza-5a-androstane derivative showed the most potent inhibitory activity against rat and human enzyme, and was more active than MK-906.
Synthesis and testosterone 5α-reductase inhibitory activity of 11-substituted 4-aza-5α-androstane compounds
摘要:
11 alpha-Acetoxy-, 11 alpha-hydroxy-, 11 beta-hydroxy-, and 11-oxo-4-aza-5 alpha-androstane compounds with an N-diphenylmethylcarbamoyl moiety at the C-17 position were synthesized and their inhibitory activities against rat and human testosterone 5 alpha-reductase were tested. Introduction of the 11 alpha-acetoxy, 11 alpha-hydroxy, 11 beta-hydroxy and 11-oxo groups into 4-aza-5 alpha-androstane compounds reduced the inhibitory activity against rat and human 5 alpha-reductase. The 11 alpha-acetoxy-4-aza-5 alpha-androstane compound in particular lost almost all its activity. However, several compounds with an 11 beta-hydroxy or 11-oxo group showed inhibitory activities comparable to MK-906. The 4-methyl-11 beta-hydroxy-4-aza-5a-androstane derivative showed the most potent inhibitory activity against rat and human enzyme, and was more active than MK-906.
Synthesis and testosterone 5α-reductase inhibitory activity of 11-substituted 4-aza-5α-androstane compounds
作者:K Ishibashi、H Kurata、T Hamada、H Horikoshi、K Kojima
DOI:10.1016/0223-5234(96)85876-4
日期:1996.1
11 alpha-Acetoxy-, 11 alpha-hydroxy-, 11 beta-hydroxy-, and 11-oxo-4-aza-5 alpha-androstane compounds with an N-diphenylmethylcarbamoyl moiety at the C-17 position were synthesized and their inhibitory activities against rat and human testosterone 5 alpha-reductase were tested. Introduction of the 11 alpha-acetoxy, 11 alpha-hydroxy, 11 beta-hydroxy and 11-oxo groups into 4-aza-5 alpha-androstane compounds reduced the inhibitory activity against rat and human 5 alpha-reductase. The 11 alpha-acetoxy-4-aza-5 alpha-androstane compound in particular lost almost all its activity. However, several compounds with an 11 beta-hydroxy or 11-oxo group showed inhibitory activities comparable to MK-906. The 4-methyl-11 beta-hydroxy-4-aza-5a-androstane derivative showed the most potent inhibitory activity against rat and human enzyme, and was more active than MK-906.