Synonyms: b-Alanine, N-[N-[N-[N-[[1-(4-carboxy-2-hydroxy-1-oxopentyl)-2-piperidinyl]carbonyl]-L-isoleucyl]-N-methyl-L-valyl]-N-methyl-L-alanyl]-,r-lactone;2H-Pyrido[1,2-d][1,4,7,10,13,16]oxapentaazacyclononadecine, cyclic peptidederiv.; Destruxin D, 1-L-2-piperidinecarboxylic acid-; Destruxin D1