AIDS-129327 AIDS129327 Ethyl 3-amino-6-((2-ethoxy-2-oxoethyl)thio)-4-methylthieno[2,3-b]pyridine-2-carboxylate NSC341982 {Thieno[2,3-b]pyridine-2-carboxylic} acid, {3-amino-6-[(2-ethoxy-2-oxoethyl)thio]-4-methyl-,} ethyl ester