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

HRID 971506Notes

Reaction equation

HRID 971506 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-3ba75763428941f88746ce3ddd22ff4e
Source dataset
uspto-grants-1979_07
Patent number
US04160085

Reaction notes

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