4-Thiazoleacetic acid, 2-amino-alpha-oxo- → (2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(1-benzhydryloxy-1-oxobutan-2-yl)oxyiminoacetic acid

Participants

Reaction Steps

30 g of O-(1-diphenylmethoxycarbonylpropyl)hydroxylamine and 16.2 g of (2-amino-4-thiazolyl)glyoxylic acid are stirred for 1 hour at room temperature in 60 ml of dimethylformamide. The reaction mixture is diluted with dichloromethane, and washed with 2N hydrochloric acid and several times with water. After evaporating the dichloromethane phase, 41 g of the title compound remain as a solid residue.

Provenance & Evidence