2-[3-(1,2-Dihydro-2-methyl-1-oxopyrrolo[1,2-a]pyrazin-3-yl)propyl]-1H-isoindole-1,3(2H)-dione is an intermediate in the synthesis of Peramine (P285302), a naturally occuring pyrrolopyrazine alkaloid produced by endophytes that protect the grass against grazing by mammals and insects.