(+-)-6-(Cyclobutylmethyl)-4,5,6,7-tetrahydro-5-methyl-2H-oxazolo[5,4,3-jk][1,4]benzodiazepin-2-one & (E)-2-Butenedioate 136723-11-0 (FUMARATE) 2H-Oxazolo[5,4,3-jk][1,4]benzodiazepin-2-one, 6-(cyclobutylmethyl)-4,5,6,7-tetrahydro-5-methyl- & (2E)-2-butenedioate (1:1) AIDS-003555 AIDS003555 TIBO deriv.