404574-64-7

Upstream product

• 78179-60-9 3β-acetoxy-12α-hydroxy-5α-spirostan-14-ene 
• 6917-04-0 (25R)-3β-Acetoxy-12,13-seco-5α-spirost-13-en-12-on 
• 915-35-5 hecogenin acetate 
• 404574-46-5 Benzoic acid (2S,4aS,4bS,6S,6aR,6bR,7S,8R,9aS,10bR,12aS)-2-acetoxy-8-(3,4-dihydroxy-3-methyl-butyl)-4a,6a,7-trimethyl-2,3,4,4a,4b,5,6,6a,6b,7,8,9a,10b,11,12,12a-hexadecahydro-1H-9-oxa-pentaleno[2,1-a]phenanthren-6-yl ester 
• 403704-52-9 C₃₆H₄₈O₆ 
• 403704-51-8 Benzoic acid (2S,4aS,4bS,6S,6aR,6bR,7S,8R,9aS,10bR,12aS)-2-acetoxy-8-((R)-4-hydroxy-3-methyl-butyl)-4a,6a,7-trimethyl-2,3,4,4a,4b,5,6,6a,6b,7,8,9a,10b,11,12,12a-hexadecahydro-1H-9-oxa-pentaleno[2,1-a]phenanthren-6-yl ester 
• 403704-37-0 Benzoic acid (2S,4aS,4bS,6S,6aR,6bR,7S,8R,9aS,10bR,12aS)-2-acetoxy-4a,6a,7-trimethyl-8-(3-methyl-but-3-enyl)-2,3,4,4a,4b,5,6,6a,6b,7,8,9a,10b,11,12,12a-hexadecahydro-1H-9-oxa-pentaleno[2,1-a]phenanthren-6-yl ester 
• 18162-48-6 tert-butyldimethylsilyl chloride 
• 98-88-4 benzoyl chloride 
• 93-97-0 benzoic acid anhydride 

Downstream Products

• 403704-42-7 C₄₃H₅₂O₈ 
• 403704-50-7 C₄₃H₅₂O₈ 
• 403704-46-1 C₄₁H₄₇N₃O₇ 
• 403704-45-0 C₄₁H₄₇BrO₇ 
• 403704-44-9 C₄₁H₄₈O₇ 
• 403704-43-8 C₄₁H₅₀O₇ 
• 404574-51-2 C₄₃H₅₄O₈ 

Relevant academic research and scientific papers

Redox refunctionalization of steroid spiroketals. Structure correction of ritterazine M

(Equation Presented) The structure of the North spiroketal moiety of ritterazine M has been corrected from 1a to 1b. This was accomplished by comparison of published spectra of the natural product with five synthetic spiroketal-alcohols. Synthesis of thes

The first total synthesis of (corrected) ritterazine M

(Equation Presented) Hecogenin acetate was converted to ritterazine M in 16 operations with an average yield per opearation of 87%. The overall linear yield was 12%. This confirmed 1 as the corrected structure for ritterazine M by total synthesis.