Toluene → Ethyl(2-{7-[[(2-methoxyphenyl)sulfonyl](methyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetate

HRID 1960487Notes

Reaction equation

HRID 1960487 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[S:9]([N:12]([CH3:25])[C:13]1[CH:14]=[CH:15][CH:16]=[C:17]2[C:21]=1[NH:20][C:19]([C:22](=[S:24])[NH2:23])=[CH:18]2)(=[O:11])=[O:10].[C:26]([O:31][CH2:32][CH3:33])(=[O:30])[C:27]#[C:28][CH3:29].C(P(CCCC)CCCC)CCC.C1(C)C=CC=CC=1>O1CCCC1>[CH2:32]([O:31][C:26](=[O:30])[CH2:27][CH:28]1[S:24][C:22]([C:19]2[NH:20][C:21]3[C:17]([CH:18]=2)=[CH:16][CH:15]=[CH:14][C:13]=3[N:12]([S:9]([C:4]2[CH:5]=[CH:6][CH:7]=[CH:8][C:3]=2[O:2][CH3:1])(=[O:11])=[O:10])[CH3:25])=[N:23][CH2:29]1)[CH3:33]

Participants

6

Reactant 4

HCID 1140TolueneHCID 13831TributylphosphineHCID 78043Ethyl 2-butynoateHCID 591359767-[[(2-methoxyphenyl)sulfonyl](methyl)amino]-1H-indole-2-carbothioamide

Product 1

HCID 59135846Ethyl(2-{7-[[(2-methoxyphenyl)sulfonyl](methyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetateYield 41%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 7-[[(2-methoxyphenyl)sulfonyl](methyl)amino]-1H-indole-2-carbothioamide (2.3 g), ethyl but-2-ynoate (1.5 mL), tributylphosphine (1.5 mL), toluene (25 mL) and tetrahydrofuran (25 mL) was stirred for 3 hr at room temperature. The reaction solution was concentrated, and the obtained residue was subjected to silica gel column chromatography (ethyl acetate:hexane=3:7-5:5) to give the title compound (1.23 g, yield: 41%) as a pale-brown amorphous solid.

Workup

  1. concentrationThe reaction solution was concentrated

Sources & evidence

ORD record
ord-4e5d96973b5f4e5d9e48fbf1d0fcbc5a
Source dataset
uspto-grants-2013_04
Patent number
US08410087B2

Reaction notes

Loading…