42002-26-6 Cyclic(eta-oxo-alpha-aminooxiraneoctanoyl-O-methyl-D-tyrosyl-L-isoleucyl-L-2-piperidinecarbonyl) Cyclo(O-methyltyrosine-L-isoleucine-L-pipecolic acid-2-amino-8-oxo-9,10-epoxydecanoic acid) Cyl-2