(3aR,11R,11aR)-11-Acetoxy-9-benzyloxy-2,2-dimethyl-5-(2-nitro-benzenesulfonyl)-3a,4,5,10,11,11a-hexahydro-1,3-dioxa-5-aza-benzo[a]cyclopenta[e]cyclooctene-7-carboxylic acid methyl ester

Base Information

Chemical Name:(3aR,11R,11aR)-11-Acetoxy-9-benzyloxy-2,2-dimethyl-5-(2-nitro-benzenesulfonyl)-3a,4,5,10,11,11a-hexahydro-1,3-dioxa-5-aza-benzo[a]cyclopenta[e]cyclooctene-7-carboxylic acid methyl ester
CAS No.:438547-29-6
Molecular Formula:C₃₁H₃₂N₂O₁₁S
Molecular Weight:640.668
Hs Code.:

(3aR,11R,11aR)-11-Acetoxy-9-benzyloxy-2,2-dimethyl-5-(2-nitro-benzenesulfonyl)-3a,4,5,10,11,11a-hexahydro-1,3-dioxa-5-aza-benzo[a]cyclopenta[e]cyclooctene-7-carboxylic acid methyl ester

Synonyms:(3aR,11R,11aR)-11-Acetoxy-9-benzyloxy-2,2-dimethyl-5-(2-nitro-benzenesulfonyl)-3a,4,5,10,11,11a-hexahydro-1,3-dioxa-5-aza-benzo[a]cyclopenta[e]cyclooctene-7-carboxylic acid methyl ester

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Chemical Property of (3aR,11R,11aR)-11-Acetoxy-9-benzyloxy-2,2-dimethyl-5-(2-nitro-benzenesulfonyl)-3a,4,5,10,11,11a-hexahydro-1,3-dioxa-5-aza-benzo[a]cyclopenta[e]cyclooctene-7-carboxylic acid methyl ester

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Technology Process of (3aR,11R,11aR)-11-Acetoxy-9-benzyloxy-2,2-dimethyl-5-(2-nitro-benzenesulfonyl)-3a,4,5,10,11,11a-hexahydro-1,3-dioxa-5-aza-benzo[a]cyclopenta[e]cyclooctene-7-carboxylic acid methyl ester

There total 5 articles about (3aR,11R,11aR)-11-Acetoxy-9-benzyloxy-2,2-dimethyl-5-(2-nitro-benzenesulfonyl)-3a,4,5,10,11,11a-hexahydro-1,3-dioxa-5-aza-benzo[a]cyclopenta[e]cyclooctene-7-carboxylic acid 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:

: 4-[(R)-2-Acetoxy-2-((4R,5R)-5-hydroxymethyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-ethyl]-3-benzyloxy-5-(2-nitro-benzenesulfonylamino)-benzoic acid methyl ester

: 438547-29-6
(3aR,11R,11aR)-11-Acetoxy-9-benzyloxy-2,2-dimethyl-5-(2-nitro-benzenesulfonyl)-3a,4,5,10,11,11a-hexahydro-1,3-dioxa-5-aza-benzo[a]cyclopenta[e]cyclooctene-7-carboxylic acid methyl ester

Guidance literature:: With triphenylphosphine; diethylazodicarboxylate; In toluene; benzene; at 20 ℃; for 1h;
DOI:10.1021/jo049862z

Reference yield:

: methyl 3-benzyloxy-4-{2-[(4R,5R)-5-(tert-butyldimethylsilyloxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]-2-hydroxyethyl}-5-nitrobenzoate

: 438547-29-6
(3aR,11R,11aR)-11-Acetoxy-9-benzyloxy-2,2-dimethyl-5-(2-nitro-benzenesulfonyl)-3a,4,5,10,11,11a-hexahydro-1,3-dioxa-5-aza-benzo[a]cyclopenta[e]cyclooctene-7-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 9.8 g / pyridine; DMAP / 3 h / 20 °C

2: 65 percent / H₂ / Pt/C / methanol / 52 h / 20 °C / 760 Torr

3: 73 percent / pyridine / 1 h / 20 °C

4: TBAF / tetrahydrofuran / 41 h / 20 °C

5: 1.15 g / Ph₃P; DEAD / benzene; toluene / 1 h / 20 °C

With pyridine; dmap; tetrabutyl ammonium fluoride; hydrogen; triphenylphosphine; diethylazodicarboxylate; platinum on activated charcoal; In tetrahydrofuran; methanol; toluene; benzene;
DOI:10.1021/jo049862z

Reference yield:

: 438547-26-3
methyl 4-{(2R)-2-acetoxy-2-[(4S,5R)-5-(tert-butyldimethylsilyloxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]ethyl}-3-benzyloxy-5-nitrobenzoate

: 438547-29-6
(3aR,11R,11aR)-11-Acetoxy-9-benzyloxy-2,2-dimethyl-5-(2-nitro-benzenesulfonyl)-3a,4,5,10,11,11a-hexahydro-1,3-dioxa-5-aza-benzo[a]cyclopenta[e]cyclooctene-7-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 65 percent / H₂ / Pt/C / methanol / 52 h / 20 °C / 760 Torr

2: 73 percent / pyridine / 1 h / 20 °C

3: TBAF / tetrahydrofuran / 41 h / 20 °C

4: 1.15 g / Ph₃P; DEAD / benzene; toluene / 1 h / 20 °C

With pyridine; tetrabutyl ammonium fluoride; hydrogen; triphenylphosphine; diethylazodicarboxylate; platinum on activated charcoal; In tetrahydrofuran; methanol; toluene; benzene;
DOI:10.1021/jo049862z