1-(2-吡啶基)哌嗪 、
21-bromo-3α,17-dihydroxy-5β-pregnane-11,20-dione 在
potassium carbonate 作用下,
以
乙腈 为溶剂,
反应 18.0h,
以88%的产率得到(3R,5R,8S,9S,10S,13S,14S,17R)-3,17-dihydroxy-10,13-dimethyl-17-[2-(4-pyridin-2-ylpiperazin-1-yl)acetyl]-2,3,4,5,6,7,8,9,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-11-one