Methyl chloroformate → HCID 178502259, compound

HRID 715600Notes

Reaction equation

HRID 715600 reaction equation
[Si:1]([O:8][C@H:9]1[C@H:13]2[O:14][CH2:15][C@@H:16]([O:17][C:18]3[N:40]([CH2:41][O:42][CH2:43][CH2:44][Si:45]([CH3:48])([CH3:47])[CH3:46])[C:21]4=[N:22][C:23]([C:27]5[CH:32]=[CH:31][C:30]([C@H:33]6[CH2:38][CH2:37][C@H:36]([NH2:39])[CH2:35][CH2:34]6)=[CH:29][CH:28]=5)=[C:24]([Cl:26])[CH:25]=[C:20]4[N:19]=3)[C@H:12]2[O:11][CH2:10]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].C(N(CC)CC)C.Cl[C:57]([O:59][CH3:60])=[O:58]>ClCCl>[Si:1]([O:8][C@H:9]1[C@H:13]2[O:14][CH2:15][C@@H:16]([O:17][C:18]3[N:40]([CH2:41][O:42][CH2:43][CH2:44][Si:45]([CH3:48])([CH3:47])[CH3:46])[C:21]4=[N:22][C:23]([C:27]5[CH:32]=[CH:31][C:30]([C@H:33]6[CH2:38][CH2:37][C@H:36]([NH:39][C:57](=[O:58])[O:59][CH3:60])[CH2:35][CH2:34]6)=[CH:29][CH:28]=5)=[C:24]([Cl:26])[CH:25]=[C:20]4[N:19]=3)[C@H:12]2[O:11][CH2:10]1)([C:4]([CH3:6])([CH3:7])[CH3:5])([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 6586Methyl chloroformate2×HCID 8471Triethylamine2×HCID 178455378HCID 178455378, compound

Product 1

HCID 178502259HCID 178502259, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

(trans)-4-(4-(2-((3R,3aR,6R,6aS)-6-(tert-Butyldimethylsilyloxy)hexahydrofuro[3,2-b]furan-3-yloxy)-6-chloro-3-((2-(trimethylsilyl)ethoxy)methyl)-3H-imidazo[4,5-b]pyridin-5-yl)phenyl)cyclohexanamine (20 mg) and triethylamine (12 μL) are dissolved in dichloromethane (2 mL), treated with methyl chloroformate (4.5 μL) and stirred for 12 hours at room temperature. Triethylamine (12 μL) and methyl chloroformate (4.5 μL) are added and the mixture is stirred for 5 hours at room temperature. The mixture is partitioned between dichloromethane and saturated aqueous NH4Cl solution. The organic phase is washed with brine, dried (MgSO4) and concentrated to give the title compound, which is directly used in the next step. LC (method 5): tR=1.20 min; Mass spectrum (ESI+): m/z=773 [M+H]+.

Workup

  1. stirringthe mixture is stirred for 5 hours at room temperature
  2. customThe mixture is partitioned between dichloromethane and saturated aqueous NH4Cl solution
  3. washThe organic phase is washed with brine
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-d0f7637d1e3643ca9b8f42dd965c71c9
Source dataset
uspto-grants-2015_11
Patent number
US09187477B2

Reaction notes

Loading…