ethyl (Z)-alpha-[[2-(tert-butoxy)-1,1-dimethyl-2-oxoethoxy]imino]-2-(tritylamino)thiazol-4-acetate

(αZ)-α-[[2-(1,1-Dimethylethoxy)-1,1-dimethyl-2-oxoethoxy]imino]-2-[(triphenylmethyl)amino]-4-thiazoleacetic acid ethyl ester