125458-65-3

Upstream product

• 149373-90-0 Sodium; (E)-4-methyl-hexa-3,5-dienoate 
• 149494-64-4 (-)-10a-formyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-5-methoxy-2,4b,8-trimethyl-10-oxo-(1α,4aβ,4bβ,5β,8α,8aα,10aβ)-1-phenanthreneacetic acid 
• 149400-06-6 (+)-(1β,9β)-20-hydroxy-1-methoxypicras-12-en-16-one 
• 123929-85-1 (+)-<4aR-(4aβ,5β,8α,8aα)>-4a,5,6,7,8,8a-hexahydro-4a,8-dimethyl-3-formyl-5-methoxy-2(1H)-naphthalenone 
• 125458-64-2 ((3aS,5S,6aR,7aS,8R,11R,11aS,11bS,11cS)-5,11-Dimethoxy-3,8,11a-trimethyl-1,4,5,6a,7,7a,8,9,10,11,11a,11b-dodecahydro-3aH-6-oxa-benzo[de]anthracen-11c-yl)-methanol 
• 824-94-2 p-methoxybenzyl chloride 

Downstream Products

• 125458-66-4 (3S,3aS,5S,6aR,7aS,8R,11R,11aS,11bS,11cS)-5,11-Dimethoxy-11c-(4-methoxy-benzyloxymethyl)-3,8,11a-trimethyl-3,3a,4,5,6a,7,7a,8,9,10,11,11a,11b,11c-tetradecahydro-6-oxa-benzo[de]anthracene 
• 125458-67-5 (1R,2S,3R,3aS,5S,6aR,7aS,8R,11R,11aS,11bS,11cS)-5,11-Dimethoxy-11c-(4-methoxy-benzyloxymethyl)-3,8,11a-trimethyl-hexadecahydro-6-oxa-benzo[de]anthracene-1,2-diol 
• 125458-69-7 (2S,3R,3aS,5S,6aR,7aS,8R,11R,11aS,11bS,11cS)-2-Hydroxy-5,11-dimethoxy-11c-(4-methoxy-benzyloxymethyl)-3,8,11a-trimethyl-tetradecahydro-6-oxa-benzo[de]anthracen-1-one 
• 125458-68-6 (1R,3R,3aS,5S,6aR,7aS,8R,11R,11aS,11bS,11cS)-1-Hydroxy-5,11-dimethoxy-11c-(4-methoxy-benzyloxymethyl)-3,8,11a-trimethyl-tetradecahydro-6-oxa-benzo[de]anthracen-2-one 

Relevant academic research and scientific papers

CHEMICAL TRANSFORMATIONS IN THE QUASSINOID SERIES: CONSTRUCTION OF THE C(8),C(11) BRIDGED HEMIKETAL RING SYSTEM OF CHAPARRINONE AND RELATED QUASSINOIDS

A facile five-step sequence commencing with picrasane derivative 9 has been developed for elaboration of the sensitive ring C hemiketal unit of chaparrinone (cf pentacyclic alcohol 3).