82470-74-4

Upstream product

• 89156-36-5 1β-t-butyldimethylsiloxy-12α,20-diacetoxypicrasa-3,12-diene-2,11,16-trione 
• 89156-35-4 1β-t-butyldimethylsiloxy-12α,20-diacetoxypicrasa-3,13(21)-diene-2,11,16-trione 
• 89156-38-7 12,20-diacetoxypicrasa-3,12-diene-1,2,11,16-tetrone 
• 89156-37-6 12,20-diacetoxy-1β-hydroxypicrasa-3,12-diene-2,11,16-trione 
• 89156-39-8 12,20-di-O-acetylshinjulactone 
• 981-15-7 ailanthone 
• 130146-59-7 (3S,3aS,5S,6aR,7aS,8R,11R,11aS,11bR,11cS)-11c-(tert-Butyl-diphenyl-silanyloxymethyl)-5-methoxy-3,8,11a-trimethyl-3,3a,4,5,6a,7,7a,8,9,10,11,11a,11b,11c-tetradecahydro-6-oxa-benzo[de]anthracen-11-ol 
• 130146-62-2 C₄₁H₅₈O₇Si 
• 130146-63-3 C₄₁H₅₆O₇Si 
• 130146-61-1 C₄₀H₅₆O₆Si 
• 130146-60-0 (3S,3aS,5S,6aR,7aS,8R,11aS,11bS,11cS)-11c-(tert-Butyl-diphenyl-silanyloxymethyl)-5-methoxy-3,8,11a-trimethyl-3a,4,5,6a,7,7a,8,9,10,11a,11b,11c-dodecahydro-3H-6-oxa-benzo[de]anthracen-11-one 
• 4779-16-2 Acetic acid (2R,3S,3aR,6aS,7aR,11R,11aR,11bS,11cR)-2-acetoxy-11-methoxy-3,8,11a-trimethyl-1,5,10-trioxo-1,3,3a,4,5,6a,7,7a,10,11,11a,11b-dodecahydro-2H-6-oxa-benzo[de]anthracen-11c-ylmethyl ester 
• 18307-11-4 Acetic acid (3aS,6aS,7aR,11R,11aR,11bS,11cR)-2-acetoxy-11-methoxy-3,8,11a-trimethyl-1,5,10-trioxo-1,4,5,6a,7,7a,10,11,11a,11b-decahydro-3aH-6-oxa-benzo[de]anthracen-11c-ylmethyl ester 
• 89156-38-7 Acetic acid (3aS,6aS,7aR,11aR,11bR,11cR)-2-acetoxy-3,8,11a-trimethyl-1,5,10,11-tetraoxo-1,4,5,6a,7,7a,10,11,11a,11b-decahydro-3aH-6-oxa-benzo[de]anthracen-11c-ylmethyl ester 

Relevant academic research and scientific papers

Synthetic Studies on Quassinoids: Total Synthesis of (+/-)-Shinjulactone C

The total synthesis of the novel quassinoid Shinjulactone C (1) is detailed which proceeds via pentacyclic lactone 3 and features new protocols for elaboration of the ring A 1β-hydroxy-2-oxo-Δ3,4 olefin unit and the C(8),C(11) bridged hemiketal array which are present in 3 and common to numerous quassinoids.

CONVERSION OF AILANTHONE INTO SHINJULACTONE C THROUGH AN IONIC CYCLOADDITION REACTION

Ailanthone was converted into shinjulactone C with a 1α,12α:5α,13α-dicyclo-9βH-picrasane skeleton.The key reaction consists of an intramolecular ionic cycloaddition between a pentadienyl cation and an olefin.