Competitive inhibition and suicide inactivation of human placental aromatase by androst-4-ene-3,6-dione derivatives and 3.ALPHA.-methoxyandrost-4-ene-6,17-dione.
作者:Mitsuteru NUMAZAWA、Ayako MUTSUMI、Hiroki KIGAWA
DOI:10.1248/cpb.38.3076
日期:——
Androst-4-ene-3,6-dione derivatives 2-4 and 3 alpha-methoxy-4-en-6-one steroid 7 were prepared and tested for their ability to inhibit aromatase in humanplacental microsomes. The 16 alpha-bromide 2, the 16 alpha-alcohol 3, and the 3 alpha-methoxide 7 of this series were effective competitive inhibitors of aromatase with apparent Ki's of 150 nM, 1.18 microM, and 700 nM. Compound 2 caused a time-dependent