Methyl chloroformate → HCID 10411909, compound
Reaction equation
[NH2:1][CH2:2][CH2:3][CH2:4][C:5]1([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[CH:9]=[C:8]([C:10]2[CH:15]=[C:14]([Cl:16])[CH:13]=[CH:12][C:11]=2[F:17])[CH2:7][N:6]1[C:18]([N:20]([CH3:22])[CH3:21])=[O:19].C(N(CC)CC)C.Cl[C:37]([O:39][CH3:40])=[O:38]>C(Cl)Cl>[Cl:16][C:14]1[CH:13]=[CH:12][C:11]([F:17])=[C:10]([C:8]2[CH2:7][N:6]([C:18]([N:20]([CH3:22])[CH3:21])=[O:19])[C:5]([CH2:4][CH2:3][CH2:2][NH:1][C:37](=[O:38])[O:39][CH3:40])([C:23]3[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=3)[CH:9]=2)[CH:15]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
To 20 mg (0.05 mmol) of amine 20-2 in CH2Cl2 was added 21 μL (0.15 mmol) of triethylamine and 5.8 μL (0.10 mmol) of methyl chloroformate. After stirring overnight the reaction was partitioned between EtOAc and 10% KHSO4, the organic phase was washed with saturated NaHCO3, brine, dried over MgSO4, and concentrated by rotary evaporation. The residue was purified by column chromatography on silica gel with EtOAc/hexanes to provide 22-1 as a white solid. Data for 22-1: 1HNMR (500 MHz, d6-DMSO) δ 7.6 (m, 1H), 7.5-7.1 (m, 8H), 6.2 (s, 1H), 4.95 (m, 1H), 4.7 (m, 1H), 3.55 (s, 3H), 3.0 (m, 2H), 2.7 (s, 6H), 2.7-2.5 (m, 1H), 2.05 (m, 1H), 1.4 (m, 2H) ppm. HRMS (ES) calc'd M+H for C24H27ClFN3O3: 460.1798. Found: 460.1797.
Workup
- customwas partitioned between EtOAc and 10% KHSO4
- washthe organic phase was washed with saturated NaHCO3, brine
- dry with materialdried over MgSO4
- concentrationconcentrated by rotary evaporation
- customThe residue was purified by column chromatography on silica gel with EtOAc/hexanes
Sources & evidence
- ORD record
- ord-e5e9f756c62e446cbc1eb46a6ef810ea
- Source dataset
- uspto-grants-2007_06
- Patent number
- US07235580B2
Reaction notes
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