652153-20-3

Upstream product

• 81927-55-1 O-benzyl 2,2,2-trichloroacetimidate 
• 652153-19-0 1-[(4aR,6R,8aS)-3,4,4a,5,6,7,8,8a-octahydro-6-hydroxy-8a-methylnaphthalen-1-yl]ethanone 
• 652153-25-8 (4aR,6R,8aR)-6-hydroxy-8a-methyloctahydronaphthalen-1(2H)-one 

Downstream Products

• 652153-13-4 (4aR,6R,8aS)-3,4,4a,5,6,7,8,8a-octahydro-8a-methoxy-β-oxo-6-(phenylmethoxy)naphthalene-1-propanoic acid prop-2-enyl ester 
• 652153-29-2 Thiocarbonic acid O-((4aR,4bS,6aR,8R,10aR,10bR,12aR)-8-benzyloxy-2-methoxy-1,1,10a-trimethyl-4,11-dioxo-1,4b,5,6,6a,7,8,9,10,10a,10b,11,12,12a-tetradecahydro-4H-chrysen-4a-ylmethyl) ester O-phenyl ester 
• 652153-21-4 (4aR,4bS,6aR,8R,10aR,10bR,12aR)-4b,5,6,6a,7,8,9,10,10a,10b,12,12a-dodecahydro-4a-(hydroxymethyl)-2-methoxy-1,1,10a-trimethyl-8-(phenylmethoxy)chrysene-4,11(1H,4aH)-dione 
• 652153-11-2 (4aR,4bS,6aR,8R,10aR,10bR,12aR)-1,4,4a,4b,5,6,7,8,9,10,10a,10b,11,12,12a-hexadecahydro-2-methoxy-1,1,10a-trimethyl-4,11-dioxo-8-(phenylmethoxy)chrysene-4a-carboxaldehyde 
• 652153-22-5 (4aR,4bS,6aR,8R,10aR,10bR,12aR)-4b,5,6,6a,7,8,9,10,10a,10b,12,12a-dodecahydro-2-methoxy-1,1,4a,10a-tetramethyl-8-(phenylmethoxy)chrysene-4,11(1H,4aH)-dione 

Relevant academic research and scientific papers

Enantioselective Synthesis of a Polyfunctionalized Tetracycle Related to Pentacyclic Triterpenes by Using an Anionic Cycloaddition Reaction

Herein we report a convergent enantioselective synthesis of a polyfunctionalized ABCD tetracycle by using an anionic cycloaddition reaction between a chiral bicyclic CD Nazarov intermediate (see 6), derived from the (-)-Weiland-Mischer ketone, and an achi