Phosgene → (S)-[3-(1-ethyl-7-fluoro-2-oxo-2,3-dihydro-1H-indol-5-yl)-2-oxo-oxazolidin-5-ylmethyl]-carbamic acid tert-butyl ester

HRID 2114882Notes

Reaction equation

HRID 2114882 reaction equation
[C:1](Cl)(Cl)=[O:2].[C:5]([O:9][C:10](=[O:30])[NH:11][CH2:12][C@H:13]([OH:29])[CH2:14][NH:15][C:16]1[CH:17]=[C:18]2[C:22](=[C:23]([F:25])[CH:24]=1)[N:21]([CH2:26][CH3:27])[C:20](=[O:28])[CH2:19]2)([CH3:8])([CH3:7])[CH3:6].C(N(CC)CC)C>ClCCl>[C:5]([O:9][C:10](=[O:30])[NH:11][CH2:12][C@@H:13]1[O:29][C:1](=[O:2])[N:15]([C:16]2[CH:17]=[C:18]3[C:22](=[C:23]([F:25])[CH:24]=2)[N:21]([CH2:26][CH3:27])[C:20](=[O:28])[CH2:19]3)[CH2:14]1)([CH3:6])([CH3:7])[CH3:8]

Participants

5

Reactant 3

HCID 6371PhosgeneHCID 8471TriethylamineHCID 69274203(R)-[3-(1-ethyl-7-fluoro-2-oxo-2,3-dihydro-1H-indol-5-ylamino)-2-hydroxy-propyl]-carbamic acid tert-butyl ester

Product 1

HCID 69272783(S)-[3-(1-ethyl-7-fluoro-2-oxo-2,3-dihydro-1H-indol-5-yl)-2-oxo-oxazolidin-5-ylmethyl]-carbamic acid tert-butyl ester

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

Phosgene (20% solution in toluene, 3.58 ml, 36.7 mmol) is added to (R)-[3-(1-ethyl-7-fluoro-2-oxo-2,3-dihydro-1H-indol-5-ylamino)-2-hydroxy-propyl]-carbamic acid tert-butyl ester (1.80 g, 4.89 mmol) and triethylamine (3.38 ml, 24.5 mmol) in dichloromethane (20 ml) at 0° C. and stirred for 30 minutes. The mixture is diluted with dichloromethane, washed with water and brine, dried (Na2SO4) and evaporated to give the title compound as a light brown solid. HPLC r.t. 4.92 min; MS for C19H24FN3O5 m/z 394.1 (M+H)+.

Workup

  1. washwashed with water and brine
  2. dry with materialdried (Na2SO4)
  3. customevaporated

Sources & evidence

ORD record
ord-43d92ee288ec4ba7be10db353a9544bc
Source dataset
uspto-grants-2008_10
Patent number
US07435751B2

Reaction notes

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