4-Bromobenzyl 3-((2-aminoethyl)thio)acrylate hydrochloride AIDS-157355 AIDS157355 Cis p-Bromobenzylaminoethylthioacrylate hydrochloride NSC638600 (HYDROCHLORIDE SALT) NSC638601 (HYDROCHLORIDE SALT) Trans p-Bromobenzylaminoethylthioacrylate hydrochloride