7.7
[]. Rama Mukherjee, et al. Synthesis of 3-O-acyl/3-benzylidene/3-hydrazone/3-hydrazine/7-carboxyacryloyl ester derivatives of betulinic acid as anti-angiogenic agents. Bioorg Med Chem Lett. 24 Jun 2;4(2):369-72.
H227-H32-H35-H37-H39-H42
P2-P26-P264-P27-P272-P273-P28-P32+P352-P33-P362+P364-P37+P378-P43-P5
GHS7