247208-81-7

Bis[N-(6-methoxyquinoxalin-2-ylcarbonyl)-D-seryl-[2,3,4,5-tetrahydro-4(S)-hydroxypyridazin-3(S)-ylcarbonyl]glycyl-N-methylglycyl-3-hydroxy-N-methyl-L-valine]-(5--1'),(5'--1)-dilactone