Water → HCID 18630332, compound
Reaction equation
[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:9][CH2:10][CH2:11][OH:12])=[O:8])=[C:4]([Si:13]([CH3:16])([CH3:15])[CH3:14])[CH:3]=1.C(N(CC)CC)C.[CH3:24][S:25](Cl)(=[O:27])=[O:26].O>C(Cl)Cl>[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:9][CH2:10][CH2:11][O:12][S:25]([CH3:24])(=[O:27])=[O:26])=[O:8])=[C:4]([Si:13]([CH3:16])([CH3:15])[CH3:14])[CH:3]=1Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of the compound of Example 263 (0.4 g) and 0.5 mL triethylamine in 10 mL CH2Cl2 at 0° C. was added methanesulfonyl chloride (0.2 mL) and the resulting reaction solution was stirred at RT for 2 h. Water was added and the two layers were separated. The organic solution was washed with brine, dried and concentrated. Purification by flash chromatography with 30% ethyl acetate-hexane gave 0.4 g of product as a white solid. m.p. 82-86° C.
Workup
- customthe resulting reaction solution
- customthe two layers were separated
- washThe organic solution was washed with brine
- customdried
- concentrationconcentrated
- customPurification by flash chromatography with 30% ethyl acetate-hexane
Sources & evidence
- ORD record
- ord-4fe784f32b324bcfb7f5073599469093
- Source dataset
- uspto-grants-2000_02
- Patent number
- US06028101
Reaction notes
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