Benzyl chloroformate → HCID 69619646, compound
Reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:14]=[C:13]2[C:8]([C@@H:9]([NH2:15])[CH2:10][CH2:11][S:12]2)=[CH:7][C:6]=1[CH3:16])=[O:4].[CH2:17]([O:24][C:25](Cl)=[O:26])[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1>>[CH3:1][O:2][C:3]([C:5]1[CH:14]=[C:13]2[C:8]([C@@H:9]([NH:15][C:25]([O:24][CH2:17][C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[O:26])[CH2:10][CH2:11][S:12]2)=[CH:7][C:6]=1[CH3:16])=[O:4]Participants
3
Procedure
By a similar reaction operation as in Starting Material Synthetic Example 4 using (S)-4-amino-6-methylthiochromane-7-carboxylic acid methyl ester (1.20 g) and benzyloxycarbonyl chloride (0.87 ml), the objective (S)-4-(benzyloxycarbonylamino)-6-methylthiochromane-7-carboxylic acid methyl ester (1.74 g) was obtained as colorless crystals.
Sources & evidence
- ORD record
- ord-d6c2c34b28a34f3096047859859b84ff
- Source dataset
- uspto-grants-2005_08
- Patent number
- US06933305B2
Reaction notes
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