172788-44-2

Upstream product

• 172788-43-1 Methyl 5-<(4aR,6S,8aS)-6-(benzyloxy)-3,4,4a,5,6,7,8,8a-octahydro-2,5,5,8a-tetramethylnaphthalen-1-yl>-3-oxopentanoate 
• 106540-32-3 (3S)-3-t-butyldimethylsilyloxy-2,2,6-trimethylcyclohexanone 
• 115333-56-7 (4aR,6S,8aS)-(+)-3,4,4a,5,6,7,8,8a-octahydro-6-benzyloxy-1-hydroxymethyl-2,5,5,8a-tetramethylnaphthalene 
• 115404-48-3 (3S,4aR,8aS)-3-Benzyloxy-8-bromomethyl-4,4,7,8a-tetramethyl-1,2,3,4,4a,5,6,8a-octahydro-naphthalene 
• 115333-55-6 Methyl (4aR,6S,8aS)-6-(benzyloxy)-3,4,4a,5,6,7,8,8a-octahydro-2,5,5,8a-tetramethylnaphthalene-1-carboxylate 
• 172788-52-2 3,3-(Ethylenedioxy)-1-<(S)-5-hydroxy-2,6,6-trimethylcyclohexenyl>butane 
• 172788-53-3 1-<(S)-5-(Benzyloxy)-2,6,6-trimethylcyclohex-1-en-1-yl>-3,3-(ethylenedioxy)butane 
• 172788-55-5 Methyl <(S)-5-(benzyloxy)-2,6,6-trimethylcyclohex-1-en-1-yl>-3-oxopentanoate 
• 115333-57-8 Methanesulfonic acid (4aR,6S,8aS)-6-benzyloxy-2,5,5,8a-tetramethyl-3,4,4a,5,6,7,8,8a-octahydro-naphthalen-1-ylmethyl ester 
• 172788-58-8 Methyl (4aR,6S,8aS)-6-(benzyloxy)-2-(diethoxyphosphoryloxy)-3,4,4a,5,6,7,8,8a-octahydro-5,5,8a-trimethylnaphthalene-1-carboxylate 
• 172788-56-6 Methyl (1R,4aR,6S,8aS)-6-(benzyloxy)decahydro-5,5,8a-trimethyl-2-oxonaphthalene-1-carboxylate 

Downstream Products

• 71103-05-4 stypoldione 
• 75657-53-3 stypodiol 
• 172788-59-9 (4aR,4bS,7S,8aS,10aR)-1-(Acetoxymethyl)-7-(benzyloxy)-3,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-2,4b,8,8,10a-pentamethylphenanthrene 
• 149051-04-7 (1'S,2'S,4'aR,4'bS,7'S,8'aS,10'aR)-7'-(Benzoyloxy)-4a',4b',5',6',7',8',8a',9',10',10a'-decahydro-5-hydroxy-2',4b',7,8',8',10a'-hexamethylspiro-3'(4'H)-one 
• 172788-49-7 (4aR,4bS,7S,8aS,10aR)-7-(Benzyloxy)-1-<2,5-bis(methoxymethoxy)-3-methylbenzyl>-3,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-2,4b,8,8,10a-pentamethylphenanthrene 
• 149051-03-6 (4aR,4bS,7S,8aS,10aR)-7-(Benzoyloxy)-1-<2,5-bis(methoxymethoxy)-3-methylbenzyl>-4a,4b,5,6,7,8,8a,9,10,10a-decahydro-2,4b,8,8,10a-pentamethylphenanthren-3(4H)-one 
• 172788-47-5 (4aR,4bS,7S,8aS,10aR)-7-(Benzyloxy)-3,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-2,4b,8,8,10a-pentamethylphenanthrene-1-methanol 
• 172788-46-4 Methyl (4aR,4bS,7S,8aS,10aR)-7-(benzyloxy)-3,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-2,4b,8,8,10a-pentamethylphenanthrene-1-carboxylate 
• 149051-06-9 (1'S,2'S,4a'R,4b'S,7'S,8a'S,10a'R)-7'-(Benzoyloxy)-3',4'4a',4b',5',6',7',8',8a',9',10',10a'-dodecahydro-2',4b',7,8',8',10a'-hexamethylspiro-5-ol 
• 149051-05-8 (4aR,4bS,7S,8aS,10aR)-7-(Benzoyloxy)-<2,5-dihydroxy-3-methylbenzyl>-4a,4b,5,6,7,8,8a,9,10,10a-decahydro-2,4b,8,8,10a-pentamethylphenanthren-3(4H)-one 
• 149051-08-1 C₃₆H₄₆O₄S₂ 
• 172924-73-1 Methyl (1S,4aR,4bS,7S,8aS,10aR)-7-(benzyloxy)-tetradecahydro-4b,8,8,10a-tetramethyl-2-oxophenanthrene-1-carboxylate 

Relevant academic research and scientific papers

Diterpenoid Total Synthesis, XXXI. Synthesis and Absolute Configuration of (-)-Stypoldione, a Metabolite of Stypopodium zonale

(S)-3-Hydroxy-2,2-dimethylcyclohexanone (2) was converted to (-)-stypoldione (1), the ichthyotoxic and cytotoxic metabolite of the brown alga Stypopodium zonale.The present synthesis established the absolute configuration of (-)-stypoldione as depicted in