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

HRID 1679211Notes

Reaction equation

HRID 1679211 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 chromatograaphy 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. IR: νmaxCHCl3 3430, 1774, 1694br, 1604, 1105, cm-1. NMR: δCDCl3 0.22m5H, 2.27+2.24s3H, 3.43m4H, 3.77m4H, 4.02d(6.4Hz)2H, 4.57s2H, 5.05-5.27m3H, 5.89d(5.4Hz)1H, 4.12-7.65m7H, 8.23d(8.4Hz)2H.

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 chromatograaphy over silica gel (10 g)
  5. additiona mixture of benzene and ethyl acetate (1:2)

Sources & evidence

ORD record
ord-7267e535f84940e9ac7d0d706993aeb2
Source dataset
uspto-grants-1978_03
Patent number
US04079181

Reaction notes

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