502761-47-9

Upstream product

• 502761-43-5 [4S-(4β,5β,9α,10β,13β,17β)]-17-(tert-butyldimethylsilanyloxy)-4-(tert-butyldiphenylsilanyloxy)-13-methyl-1,7-dioxo-1,2,3,4,5,6,7,9,11,12,13,15,16,17-tetradecahydro-cyclopenta[a]phenanthrene-10-carboxylic acid methyl ester 
• 502761-45-7 [4S-(4β,5β,9α,10β,13β,17β)]-4-(tert-butyldiphenylsilanyloxy)-17-methoxymethoxy-13-methyl-1,7-dioxo-1,2,3,4,5,6,7,9,11,12,13,15,16,17-tetradecahydro-cyclopenta[a]phenanthrene-10-carboxylic acid methyl ester 
• 502761-44-6 [4S-(4β,5β,9α,10β,13β,17β)]-4-(tert-butyldiphenylsilanyloxy)-17-hydroxy-13-methyl-1,7-dioxo-1,2,3,4,5,6,7,9,11,12,13,15,16,17-tetradecahydro-cyclopenta[a]phenanthrene-10-carboxylic acid methyl ester 
• 502764-68-3 [1S-(1β,3aβ,7aβ)]-3-[1,3a-bis(methoxymethoxy)-7a-methyl-2,3,3a,6,7,7a-hexahydro-1H-inden-4-yl]-3-oxopropionic acid allyl ester 
• 502761-52-6 [1S-(1β,7aβ)]-3-[1-(tert-butyldimethylsilanyloxy)-7a-methyl-2,6,7,7a-tetrahydro-1H-inden-4-yl]-3-hydroxypropionic acid allyl ester 
• 502764-67-2 [1S-(1β,7aβ)]-3-[1-(tert-butyldimethylsilanyloxy)-7a-methyl-2,6,7,7a-tetrahydro-1H-inden-4-yl]-3-oxopropionic acid allyl ester 
• 502761-50-4 trifluoromethanesulfonic acid [1S-(1β,7aβ)]-1-(tert-butyldimethylsilanyloxy)-7a-methyl-2,6,7,7a-tetrahydro-1H-inden-4-yl ester 
• 502761-38-8 trifluoromethanesulfonic acid [1S-(1β,3aβ,7aβ)]-1,3a-bis(methoxymethoxy)-7a-methyl-2,3,3a,6,7,7a-hexahydro-1H-inden-4-yl ester 
• 502761-55-9 [1S-(1β,3aβ,4α,7aβ)]-[1,3a-bis(methoxymethoxy)-7a-methyl-octahydro-1H-inden-4-yloxy]trimethylsilane 
• 502761-34-4 [1S-(1β,7aβ)]-1-(tert-butyldimethylsilanyloxy)-7a-methyl-2,6,7,7a-tetrahydro-1H-indene-4-carboxylic acid methyl ester 
• 502761-39-9 [1S-(1β,3aβ,7aβ)]-1-[1,3a-bis(methoxymethoxy)-7a-methyl-2,3,3a,6,7,7a-hexahydro-1H-inden-4-yl]ethanone 
• 502761-51-5 [1S-(1β,7aβ)]-[1-(tert-butyldimethylsilanyloxy)-7a-methyl-2,6,7,7a-tetrahydro-1H-inden-4-yl]methanol 
• 502761-37-7 [1S-(1β,3aβ,4α,7aβ)]-1,3a-bis(methoxymethoxy)-7a-methyl-octahydro-1H-inden-4-ol 
• 502761-35-5 [1S-(1β,7aβ)]-1-(tert-butyldimethylsilanyloxy)-7a-methyl-2,6,7,7a-tetrahydro-1H-indene-4-carbaldehyde 

Downstream Products

• 502761-48-0 [4S-(4β,5β,9α,10β,13β,17β)]-4-hydroxy-13-methyl-17-(4-nitrobenzoyloxy)-1-oxo-1,2,3,4,5,6,7,9,11,12,13,15,16,17-tetradecahydro-cyclopenta[a]phenanthrene-10-carboxylic acid methyl ester 

Relevant academic research and scientific papers

New strategy for convergent steroid synthesis

We published recently our results on a new and convergent synthesis of natural steroids. The strategy was based on a cycloaddition reaction of Nazarov reagents 2 and 5 with cyclohexenones 1 and 4. In this paper we report results that deal with the synthes