4-硝基苯胺 、 3-Methoxy-16β-p-tolylsulfonyloxymethylestra-1,3,5(10)-trien-17β-ol O(17)-chlorocarbonic acid ester 以62%的产率得到Toluene-4-sulfonic acid (8R,9S,13S,14S,16R,17S)-3-methoxy-13-methyl-17-(4-nitro-phenylcarbamoyloxy)-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-16-ylmethyl ester