1,1-Dimethylethyl N-(aminosulfonyl)carbamate → 1,1-Dimethylethyl N-(aminosulfonyl)carbamate
Reaction equation
[C:1]([S:4][C@H:5]1[CH2:9][N:8]([C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])[C@@H:7]([CH2:17]O)[CH2:6]1)(=[O:3])[CH3:2].[C:19]([O:23][C:24]([NH:26][S:27]([NH2:30])(=[O:29])=[O:28])=[O:25])([CH3:22])([CH3:21])[CH3:20]>>[C:19]([O:23][C:24]([NH:26][S:27]([NH2:30])(=[O:29])=[O:28])=[O:25])([CH3:22])([CH3:20])[CH3:21].[C:1]([S:4][C@H:5]1[CH2:9][N:8]([C:10]([O:12][C:13]([CH3:14])([CH3:15])[CH3:16])=[O:11])[C@@H:7]([CH2:17][N:26]([C:24]([O:23][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:25])[S:27](=[O:28])(=[O:29])[NH2:30])[CH2:6]1)(=[O:3])[CH3:2]Participants
4
Reactant 2
Product 2
Procedure
N-t-butoxycarbonylsulfamide is prepared in the same manner as in the paragraph (a) of Step A-6 in preparative Example 7-A. (2R,4R)-4-acetylthio-1-t-butoxycarbonylpyrrolidine-2-methanol (i.e., a substrate) is allowed to react with the obtained N-t-butoxycarbonylsulfamide in the similar manner as in paragraph (b) of Step A-6 in Preparative Example 7-A under a condition for Step B-6 shown in Table 2 to give (2R,4R)-4-acetylthio-1-t-butoxycarbonyl-2-(N-t-butoxycarbonyl-N-sulfamoylamino)methylpyrrolidine.
Sources & evidence
- ORD record
- ord-cc33a756bc1f4abb99afaa3f48c2c01b
- Source dataset
- uspto-grants-1997_12
- Patent number
- US05703243
Reaction notes
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