1-(1,1-Dimethylethyl) 2-ethyl (2S)-5-oxo-1,2-pyrrolidinedicarboxylate

Pharmaceutical intermediate for peptide synthesis

1-Boc-D-Pyroglutamic acid ethyl ester

Pharmaceutical intermediate

(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-methoxy-4-oxobutanoic acid

Protected amino acid for peptide synthesis

(E)-N-(4-((3-Chloro-4-fluorophenyl)amino)-7-hydroxyquinazolin-6-yl)-4-(dimethylamino)but-2-enamide

active pharmaceutical ingredient

N-(3-Chloro-4-fluorophenyl)-7-methoxy-6-nitroquinazolin-4-amine

Pharmaceutical intermediate for kinase inhibitors

Erlotinib hydrochloride

active pharmaceutical ingredient