121280-49-7 Butanamide, N-(((1-carboxy-2-(3-hydroxyphenyl)ethyl)amino)carbonyl)alanyl-N3-(N-alanyl-3-hydroxyphenylalanyl)-N-((5-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)dihydro-4-hydroxy-2(3H)-furanylidene)methyl)-N3-methyl-2,3-diamino- Pacidamycin 3