110652-72-7 2-Propenamide, N,N-dimethyl-3-(5,10,11,11a-tetrahydro-9,11-dimethoxy-5-oxo-1H-pyrrolo(2,1-c)(1,4)benzodiazepin-2-yl)-, (11R-(2(E),11-alpha,11a-beta))- Porothramycin B