6.1
[1]. Deevi Basavaiah, et al. The Baylis-Hillman acetates as a valuable source for one-pot multistep synthesis: a facile synthesis of functionalized tri-/tetracyclic frameworks containing azocine moiety. Org Lett. 7 Jun 1;9(1):45-6.
H-H15-H19-H5
P61-P64-P7-P71-P8-P+P5-P4+P4-P5+P51+P8-P-P6+P64-P4+P-P45-P51
GHS7