4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(4-benzyl-4-(ethoxycarbonyl)piperidine-1-carbonyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)-2,2-dimethyl-4-oxobutanoic acid

Base Information

Chemical Name:4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(4-benzyl-4-(ethoxycarbonyl)piperidine-1-carbonyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)-2,2-dimethyl-4-oxobutanoic acid
CAS No.:1261253-31-9
Molecular Formula:C₅₁H₇₅NO₇
Molecular Weight:814.159
Hs Code.:

4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(4-benzyl-4-(ethoxycarbonyl)piperidine-1-carbonyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)-2,2-dimethyl-4-oxobutanoic acid

Synonyms:4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(4-benzyl-4-(ethoxycarbonyl)piperidine-1-carbonyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)-2,2-dimethyl-4-oxobutanoic acid

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Chemical Property of 4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(4-benzyl-4-(ethoxycarbonyl)piperidine-1-carbonyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)-2,2-dimethyl-4-oxobutanoic acid

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Technology Process of 4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(4-benzyl-4-(ethoxycarbonyl)piperidine-1-carbonyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)-2,2-dimethyl-4-oxobutanoic acid

There total 9 articles about 4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(4-benzyl-4-(ethoxycarbonyl)piperidine-1-carbonyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)-2,2-dimethyl-4-oxobutanoic acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

: 17347-61-4
2,2-dimethylsuccinic anhydride

: 1261253-30-8
ethyl 4-benzyl-4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-hydroxy-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysene-3a-carbonyl)piperidine-4-carboxylate

: 1261253-31-9
4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(4-benzyl-4-(ethoxycarbonyl)piperidine-1-carbonyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)-2,2-dimethyl-4-oxobutanoic acid

Guidance literature:: With pyridine; dmap; at 20 ℃; for 24h; Reflux;

Reference yield:

Betulinic acid: 472-15-1
Betulinic acid

: 1261253-31-9
4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(4-benzyl-4-(ethoxycarbonyl)piperidine-1-carbonyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)-2,2-dimethyl-4-oxobutanoic acid

Guidance literature:: Multi-step reaction with 5 steps

1: dmap; pyridine / 24 h / 0 - 20 °C / Reflux

2: oxalyl dichloride / dichloromethane / 2 h / 0 - 20 °C

3: triethylamine / dichloromethane / 8 h / 20 °C

4: sodium hydroxide; water / tetrahydrofuran; methanol / 6 h / 0 - 20 °C

5: dmap; pyridine / 24 h / 20 °C / Reflux

With pyridine; dmap; oxalyl dichloride; water; triethylamine; sodium hydroxide; In tetrahydrofuran; methanol; dichloromethane;

Reference yield:

: 167263-10-7
4-benzyl-piperidine-1,4-dicarboxylic acid 1-tert-butyl ester 4-ethyl ester

: 1261253-31-9
4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-(4-benzyl-4-(ethoxycarbonyl)piperidine-1-carbonyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)-2,2-dimethyl-4-oxobutanoic acid

Guidance literature:: Multi-step reaction with 4 steps

1: trifluoroacetic acid / dichloromethane / 6 h / 20 °C

2: triethylamine / dichloromethane / 8 h / 20 °C

3: sodium hydroxide; water / tetrahydrofuran; methanol / 6 h / 0 - 20 °C

4: dmap; pyridine / 24 h / 20 °C / Reflux

With pyridine; dmap; water; triethylamine; trifluoroacetic acid; sodium hydroxide; In tetrahydrofuran; methanol; dichloromethane;