Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-methyl ester

Base Information

Chemical Name:Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-methyl ester
CAS No.:852720-15-1
Molecular Formula:C₄₆H₆₀O₆
Molecular Weight:708.979
Hs Code.:

Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-methyl ester

Synonyms:Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-methyl ester

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Chemical Property of Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-methyl ester

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Technology Process of Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-methyl ester

There total 3 articles about Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-methyl ester 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: 100.0%

: 186581-53-3,908094-01-9,334-88-3
diazomethane

: 852720-10-6
Phthalic acid mono-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester

: 852720-15-1
Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-methyl ester

Guidance literature:: In diethyl ether; chloroform; for 0.5h;
DOI:10.1016/j.bmc.2005.03.006

Reference yield:

: 85-44-9
phthalic anhydride

: 852720-15-1
Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-methyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: 79 percent / 4-(dimethylamino)pyridine; pyridine / 30 h / Heating

2: 100 percent / diethyl ether; CHCl₃ / 0.5 h

With pyridine; dmap; In diethyl ether; chloroform;
DOI:10.1016/j.bmc.2005.03.006

Reference yield:

: 192211-42-0
benzyl (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-3aH-cyclopenta[a]chrysene-3a-carboxylate

: 852720-15-1
Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-methyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: 79 percent / 4-(dimethylamino)pyridine; pyridine / 30 h / Heating

2: 100 percent / diethyl ether; CHCl₃ / 0.5 h

With pyridine; dmap; In diethyl ether; chloroform;
DOI:10.1016/j.bmc.2005.03.006