156137-97-2

Upstream product

• 20823-31-8 3,17β-dihydroxyestra-1,3,5(10)-trien-6-one 17-acetate 3-methyl ether 
• 108-98-5 thiophenol 
• 153004-14-9 (6R,7R,8R,9S,13S,14S,17S)-6-Benzenesulfonyl-3-methoxy-13-methyl-7-trimethylsilanylethynyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-ol 
• 153004-08-1 17β-acetyloxy-3-methoxy-6-(phenylsulfonyl)estra-1,3,5(10),6-tetraene 
• 156137-94-9 Acetic acid (8R,9S,13S,14S,17S)-3-methoxy-13-methyl-6-phenylsulfanyl-9,11,12,13,14,15,16,17-octahydro-8H-cyclopenta[a]phenanthren-17-yl ester 
• 153004-15-0 (6R,7R,8R,9S,13S,14S,17S)-6-Benzenesulfonyl-7-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-ol 

Relevant academic research and scientific papers

A NEW, STEREOSELECTIVE APPROACH TO C(7)-ALKYLATED ESTRA-1,3,5(10)-TRIENE DERIVATIVES

17β-Acetyloxy-3-methoxy-6-(phenylsulfonyl)estra-1,3,5(10),6-tetraene (4) was prepared as a substrate for conjugate addition of organolithium reagents by a three-step sequence starting from 17β-acetyloxy-3-methoxyestra-1,3,5(10)-trien-6-one (2).While methy