Morpholine → p-Nitrobenzyl alpha-[4-cyclopropylmethoxycarbonylthio-3-phenoxyacetamido-2-oxoazetidin-1-yl]-alpha-(1-morpholinoethylidene)acetate

HRID 1155801Notes

Reaction equation

HRID 1155801 reaction equation
[CH:1]1([CH2:4][O:5][C:6]([S:8][CH:9]2[N:12]([C:13](=[C:27](OS(C)(=O)=O)[CH3:28])[C:14]([O:16][CH2:17][C:18]3[CH:23]=[CH:22][C:21]([N+:24]([O-:26])=[O:25])=[CH:20][CH:19]=3)=[O:15])[C:11](=[O:34])[CH:10]2[NH:35][C:36](=[O:45])[CH2:37][O:38][C:39]2[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=2)=[O:7])[CH2:3][CH2:2]1.[NH:46]1[CH2:51][CH2:50][O:49][CH2:48][CH2:47]1>C1C=CC=CC=1>[CH:1]1([CH2:4][O:5][C:6]([S:8][CH:9]2[N:12]([C:13](=[C:27]([N:46]3[CH2:51][CH2:50][O:49][CH2:48][CH2:47]3)[CH3:28])[C:14]([O:16][CH2:17][C:18]3[CH:23]=[CH:22][C:21]([N+:24]([O-:26])=[O:25])=[CH:20][CH:19]=3)=[O:15])[C:11](=[O:34])[CH:10]2[NH:35][C:36](=[O:45])[CH2:37][O:38][C:39]2[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=2)=[O:7])[CH2:3][CH2:2]1

Participants

4

Procedure

To a solution of p-nitrobenzyl α-[4-cyclopropylmethoxycarbonylthio-3-phenoxyacetamido-2-oxoazetidin-1-yl]-α-(1-methanesulfonyloxyethylidene)acetate (1.12 g) in benzene (11 ml) is added morpholine (0.26 ml) under ice cooling, and the mixture is kept at 10° C. overnight. The reaction mixture is washed with water, dried, and evaporated under reduced pressure. Purification of the obtained residue (1 g) by chromatography over silica gel (10 g) using a mixture of benzene and ethyl acetate (1:2) gives p-nitrobenzyl α-[4-cyclopropylmethoxycarbonylthio-3-phenoxyacetamido-2-oxoazetidin-1-yl]-α-(1-morpholinoethylidene)acetate (602 mg). Foam.

Workup

  1. washThe reaction mixture is washed with water
  2. customdried
  3. customevaporated under reduced pressure
  4. customPurification of the obtained residue (1 g) by chromatography over silica gel (10 g)
  5. additiona mixture of benzene and ethyl acetate (1:2)

Sources & evidence

ORD record
ord-c679a44b1a3c4f0bbf2f2f9c83112a85
Source dataset
uspto-grants-1982_06
Patent number
US04332722

Reaction notes

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