10H-Thieno(3,4-b)(1,5)benzodiazepin-10-one, 4,9-dihydro-4-((4-methyl-1-piperazinyl)acetyl)- 4,9-Dihydro-4-((4-methyl-1-piperazinyl)acetyl)-10H-thieno(3,4-b)(1,5)benzodiazepin-10-one 80880-93-9 9,10-Dihydro-4-((4-methylpiperazin-1-yl)acetyl)-4H-thieno(3,4-b)(1,5)benzodiazepin-10-one