2-(2-Amino-4-thiazolyl)-2-(1-diphenylmethoxycarbonyl-1-methylethoxy)imino acetic acid, hydrochloride salt → (2-Amino-1,3-thiazol-4-YL)({[1-(diphenylmethoxy)-2-methyl-1-oxopropan-2-YL]oxy}imino)acetic acid

Participants

Reaction Steps

A suspension of the hydrochloride salt product from part (e) in water (20 ml./g.) is adjusted to pH 2.6 and stirred for 30 minutes at 0°. The resulting suspension is filtered, washed thoroughly with water, and dried to yield 2-(2-amino-4-thiazolyl)-2-(1-diphenylmethoxycarbonyl-1-methylethoxy)iminoacetic acid.

Provenance & Evidence