Ethanolamine → 2-[(E)-2-(3-Butyl-5-methyl-isoxazol-4-yl)-vinyl]-4-methyl-thiazole-5-carboxylic acid (2-hydroxy-ethyl)-amide

HRID 1923610Notes

Reaction equation

HRID 1923610 reaction equation
CO[C:3]([C:5]1[S:9][C:8](/[CH:10]=[CH:11]/[C:12]2[C:13]([CH2:18][CH2:19][CH2:20][CH3:21])=[N:14][O:15][C:16]=2[CH3:17])=[N:7][C:6]=1[CH3:22])=[O:4].[CH2:23]([CH2:25][NH2:26])[OH:24]>C1(C)C=CC=CC=1>[OH:24][CH2:23][CH2:25][NH:26][C:3]([C:5]1[S:9][C:8](/[CH:10]=[CH:11]/[C:12]2[C:13]([CH2:18][CH2:19][CH2:20][CH3:21])=[N:14][O:15][C:16]=2[CH3:17])=[N:7][C:6]=1[CH3:22])=[O:4]

Participants

4

Reactant 2

HCID 700EthanolamineHCID 666436512-[(E)-2-(3-Butyl-5-methyl-isoxazol-4-yl)-vinyl]-4-methyl-thiazole-5-carboxylic acid methyl ester

Product 1

HCID 497811512-[(E)-2-(3-Butyl-5-methyl-isoxazol-4-yl)-vinyl]-4-methyl-thiazole-5-carboxylic acid (2-hydroxy-ethyl)-amideYield 18.2%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

To a stirred solution of 2-[(E)-2-(3-butyl-5-methyl-isoxazol-4-yl)-vinyl]-4-methyl-thiazole-5-carboxylic acid methyl ester (70 mg, 0.22 mmol) in toluene (0.5 mL) was added ethanolamine (16 mg, 0.26 mmol) and TBD (18 mg, 0.12 mmol). After 20 h the reaction mixture was concentrated in vacuo then purified by chromatography (silica, 0 to 10% methanol in dichloromethane) to give the title compound (14 mg, 18%) as a white solid. MS: m/e=350.3 [M+H]+.

Workup

  1. concentrationAfter 20 h the reaction mixture was concentrated in vacuo
  2. customthen purified by chromatography (silica, 0 to 10% methanol in dichloromethane)

Sources & evidence

ORD record
ord-fe9aa595507a4ae8b5b23b7669d864e2
Source dataset
uspto-grants-2012_05
Patent number
US08178522B2

Reaction notes

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