Triethylamine → (2R,5R)-5-Chloromethyl-4-{2-[6-(2-fluoro-benzyl)-3,3-dimethyl-2,3-dihydro-pyrrolo[3,2-c]pyridin-1-yl]-2-oxo-ethyl}-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

HRID 1475451Notes

Reaction equation

[C:1]([O:5][C:6]([N:8]1[CH2:13][C@H:12]([CH2:14]O)[N:11]([CH2:16][C:17]([N:19]2[C:27]3[CH:26]=[C:25]([CH2:28][C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=4[F:35])[N:24]=[CH:23][C:22]=3[C:21]([CH3:37])([CH3:36])[CH2:20]2)=[O:18])[CH2:10][C@H:9]1[CH3:38])=[O:7])([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.CS([Cl:50])(=O)=O>C(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:13][C@H:12]([CH2:14][Cl:50])[N:11]([CH2:16][C:17]([N:19]2[C:27]3[CH:26]=[C:25]([CH2:28][C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=4[F:35])[N:24]=[CH:23][C:22]=3[C:21]([CH3:37])([CH3:36])[CH2:20]2)=[O:18])[CH2:10][C@H:9]1[CH3:38])=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 20 °C

Procedure

To a stirred solution of (2R,5R)-4-{2-[6-(2-fluoro-benzyl)-3,3-dimethyl-2,3-dihydro-pyrrolo[3,2-c]pyridin-1-yl]-2-oxo-ethyl}-5-hydroxymethyl-2-methyl-piperazine-1-carboxylic acid tert-butyl ester (0.572 g, 0.97 mmol) and triethylamine (0.22 mL, 0.157 g, 1.55 mmol) in DCM (10 mL) at −10° C. under nitrogen was added a solution of methanesulfonyl chloride (0.09 mL, 0.133 g, 1.2 mmol) in DCM (5 mL). Mixture was stirred at 20° C. for 18 h then partitioned between saturated aqueous NaHCO3 (50 mL) and DCM (3×30 mL) and combined organic extracts were dried (Na2SO4) and evaporated in vacuo to give the title compound (0.576 g) as an oil, used without further purification. MS: [M+H]+=545.

Workup

customthen partitioned between saturated aqueous NaHCO3 (50 mL) and DCM (3×30 mL)
dry with materialwere dried (Na2SO4)
customevaporated in vacuo

Sources & evidence

ORD record: ord-42dd8bd417c4407c87018893e66150a1
Source dataset: uspto-grants-2015_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09018214B2

Reaction notes

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