(3S,5aS,10bS,11aS)-10b-[[(1S,4aS,8aS)-Decahydro-5,5,8a-trimethyl-2-methylene-1-naphthalenyl]methyl]-6,10b,11,11a-tetrahydro-3-(2-methylpropyl)-2H-pyrazino[1',2':1,5]pyrrolo[2,3-b]indole-1,4(3H,5aH)-dione; [3S-[3α,5aα,10bα(1R*,4aR*,8aR*),11aβ]]-10b-[(Decahydro-5,5,8a-trimethyl-2-methylene-1-naphthalenyl)methyl]-6,10b,11,11a-tetrahydro-3-(2-methylpropyl)-2H-pyrazino[1',2':1,5]pyrrolo[2,3-b]indole-1,4(3H,5aH)-dione

Drimentine A is a terpenylated diketopiperazine antibiotic originally isolated from Actinomycete bacteria.1 It is active against Gram-positive and Gram-negative bacteria, fungi, and yeast and has anthelmintic properties.