(2S,5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-[1-(4-fluoro-benzenesulfonyl)-meth-(Z)-ylidene]-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

Base Information

Chemical Name:(2S,5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-[1-(4-fluoro-benzenesulfonyl)-meth-(Z)-ylidene]-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester
CAS No.:160226-42-6
Molecular Formula:C₂₉H₃₅FN₂O₈SSi
Molecular Weight:618.755
Hs Code.:

(2S,5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-[1-(4-fluoro-benzenesulfonyl)-meth-(Z)-ylidene]-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

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Chemical Property of (2S,5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-[1-(4-fluoro-benzenesulfonyl)-meth-(Z)-ylidene]-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

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Technology Process of (2S,5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-[1-(4-fluoro-benzenesulfonyl)-meth-(Z)-ylidene]-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

There total 6 articles about (2S,5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-[1-(4-fluoro-benzenesulfonyl)-meth-(Z)-ylidene]-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl 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: 58.0%

: 139211-50-0
(3S,4R)-3-<(1R)-1-<<(1,1-dimethylethyl)-dimethylsilyl>oxy>ethyl>-2-oxo-4-<3-<(4-fluorophenyl)-sulfonyl>-2-iodo-2(E)-propenyl>-1-azetidineacetic acid,(4-nitrophenyl)methyl ester

: 160154-00-7
(5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-(4-fluoro-benzenesulfonylmethyl)-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester

: 160226-42-6
(2S,5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-[1-(4-fluoro-benzenesulfonyl)-meth-(Z)-ylidene]-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

Guidance literature:: With lithium hexamethyldisilazane; In tetrahydrofuran; at -78 ℃; for 0.75h;
DOI:10.1016/S0040-4020(01)89561-2

Reference yield:

: 619-73-8
4-nitrobenzyl chloride

: 160226-42-6
(2S,5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-[1-(4-fluoro-benzenesulfonyl)-meth-(Z)-ylidene]-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 76 percent / dicyclohexylcarbodiimide, dimethylaminopyridine / tetrahydrofuran

2: 84 percent / iodine, sodium bicarbonate, sodium acetate / H₂O; ethyl acetate / 0.5 h / Irradiation

3: 58 percent / LiN(TMS)2 / tetrahydrofuran / 0.75 h / -78 °C

With dmap; iodine; sodium acetate; sodium hydrogencarbonate; dicyclohexyl-carbodiimide; lithium hexamethyldisilazane; In tetrahydrofuran; water; ethyl acetate;
DOI:10.1016/S0040-4020(01)89561-2

Reference yield:

: 76899-07-5,78963-47-0,78963-48-1,78963-60-7,80951-41-3,81275-02-7,85647-75-2,85954-95-6,92217-74-8,104527-11-9,76855-69-1
(3R,4R)-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-acetoxyazetidin-2-one

: 160226-42-6
(2S,5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-[1-(4-fluoro-benzenesulfonyl)-meth-(Z)-ylidene]-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 66.9 percent / zinc, diethylaluminum chloride / tetrahydrofuran; toluene / 0 degC, 2 h, room t., overnight

2: 90 percent / sodium hydride / tetrahydrofuran; dimethylformamide / Ambient temperature

3: 76 percent / dicyclohexylcarbodiimide, dimethylaminopyridine / tetrahydrofuran

4: 84 percent / iodine, sodium bicarbonate, sodium acetate / H₂O; ethyl acetate / 0.5 h / Irradiation

5: 58 percent / LiN(TMS)2 / tetrahydrofuran / 0.75 h / -78 °C

With dmap; iodine; sodium acetate; diethylaluminium chloride; sodium hydride; sodium hydrogencarbonate; dicyclohexyl-carbodiimide; lithium hexamethyldisilazane; zinc; In tetrahydrofuran; water; ethyl acetate; N,N-dimethyl-formamide; toluene;
DOI:10.1016/S0040-4020(01)89561-2