44.48
[]. Ajay Kumar, et al. Synthesis of Novel Functionalized 4-Aza-2,-Didehydropodophyllotoxin Derivatives with Potential Antitumor Activity. J Heterocycl Chem. 2 Nov;47(6):275-282.
H2+H2+H2-H5-H9-H5
P26-P264-P27-P27-P28-P2+P52-P4+P4-P-P62+P64-P45-P5
GHS7