Synonyms: Cyclic(b-alanyl-3,4-didehydro-L-prolyl-4-chloro-D-phenylalanyl-D-tryptophyl-L-seryl-L-tyrosyl-D-tryptophyl-N-methyl-L-leucyl-L-arginyl-L-prolyl);1H-Dipyrrolo[1,2-a:1',2'-y][1,4,7,10,13,16,19,22,25,28]decaazacyclohentriacontine,cyclic peptide deriv.