Water → HCID 86603636, compound

HRID 2376009Notes

Reaction equation

[C:1]([O:5][C:6]([N:8]([C@@H:22]1[CH2:26][CH2:25][NH:24][CH2:23]1)[C:9]1[N:14]=[CH:13][C:12](/[CH:15]=[CH:16]/[C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:11][CH:10]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(=O)([O-])[O-].[K+].[K+].Br[CH:34]([C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=1)[C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1.O>CN(C)C=O>[C:1]([O:5][C:6]([N:8]([C@@H:22]1[CH2:26][CH2:25][N:24]([CH:34]([C:35]2[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=2)[C:41]2[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=2)[CH2:23]1)[C:9]1[N:14]=[CH:13][C:12](/[CH:15]=[CH:16]/[C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:11][CH:10]=1)=[O:7])([CH3:2])([CH3:3])[CH3:4]

Participants

Conditions

Temperature: 60 °C

Procedure

To a stirred solution of ethyl (2E)-3-(6-{(tert-butoxycarbonyl)[(3R)-3-pyrrolidinyl]amino}-3-pyridyl)acrylate (330 mg) in dimethylformamide (6 mL) was added potassium carbonate (158 mg) and 1,1′-(bromomethylene)dibenzene (225 mg), and the mixture was stirred at 60° C. for 2 hours. The resulting mixture was poured into water and extracted with ethyl acetate. The organic phase was washed with brine, dried over sodium sulfate, and concentrated in vacuo. The residue was purified by chromatography (hexane:ethyl acetate=4:1 then chloroform:methanol=20:1) to give ethyl (2E)-3-(6-{(tert-butoxycarbonyl)[(3R)-1-(diphenylmethyl)-3-pyrrolidinyl]amino}-3-pyridyl)acrylate (210 mg) as an oil.

Workup

extractionextracted with ethyl acetate
washThe organic phase was washed with brine
dry with materialdried over sodium sulfate
concentrationconcentrated in vacuo
customThe residue was purified by chromatography (hexane

Sources & evidence

ORD record: ord-54f3dc288b02433f9e0ba12635e4834c
Source dataset: uspto-grants-2008_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07465731B2

Reaction notes

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