Synonyms: N,N-Dimethylthreonylvalyl-2-phenylglycylprolyl-N-methylvalyl-2,3-didehydro-3-oxiranylhomoserylprolyl-b,3-dihydroxy-O-methyltyrosyl-N-methylvalyl-a,b-didehydro-N-methyltyrosine e1-lactone cyclic (8®10)-ether; Tyrosine,N,N-dimethylthreonylvalyl-2-phenylglycylprolyl-N-methylvalyl-2,3-didehydro-3-oxiranylhomoserylprolyl-b,3-dihydroxy-O-methyltyrosyl-N-methylvalyl-a,b-didehydro-N-methyl-, e1-lactone, cyclic (8®10)-ether