Trifluoroacetic acid → HCID 137225434, compound
Reaction equation
[F:1][C:2]([F:7])([F:6])[C:3]([OH:5])=[O:4].C1(SC)C=CC=CC=1.[OH:16][C:17]1[CH:18]=[C:19]([CH:24]=[N:25][NH:26][S:27]([NH:30][C:31]([N:33]2[CH2:36][C@H:35]([NH:37]C(=O)OCC3C=CC=CC=3)[C:34]2=[O:48])=[O:32])(=[O:29])=[O:28])[CH:20]=[CH:21][C:22]=1[OH:23]>>[F:1][C:2]([F:7])([F:6])[C:3]([OH:5])=[O:4].[NH2:37][C@H:35]1[CH2:36][N:33]([C:31]([NH:30][S:27]([NH:26][N:25]=[CH:24][C:19]2[CH:20]=[CH:21][C:22]([OH:23])=[C:17]([OH:16])[CH:18]=2)(=[O:28])=[O:29])=[O:32])[C:34]1=[O:48]Participants
4
Conditions
- Temperature
- 0 °C
Procedure
A mixture of 22 ml of trifluoroacetic acid and 5.8 ml of thioanisole was cooled to 0° C., and 5.5 g (11.5 mmol) of (S)-[1-[[[[2-[(3,4-dihydroxyphenyl)methylene]hydrazino]sulfonyl]amino]carbonyl]-2-oxo-3-azetidinyl]carbamic acid, phenylmethyl ester were added. After stirring overnight at room temperature, the excess trifluoroacetic acid was evaporated in vacuo and the residue triturated with ether. The trifluoroacetic acid salt was filtered off by suction and dried in vacuo; yield: 2.64 g.
Workup
- customthe excess trifluoroacetic acid was evaporated in vacuo
- customthe residue triturated with ether
- filtrationThe trifluoroacetic acid salt was filtered off by suction
- customdried in vacuo
Sources & evidence
- ORD record
- ord-4347d54c445743ed844faf99b9babdfb
- Source dataset
- uspto-grants-1989_01
- Patent number
- US04801705
Reaction notes
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