Table 1.

Yields and mp data for final tricyclic PCV and HBG derivatives 9 and 10.

No.	R	Yield (%)	m.p. (oC)	No.	R	Yield (%)	m.p. (oC)
9a		68	212–214	10a		61	248–250
9b		65	>300	10b		62	288–290
9c		62	258–260	10c		62	280–282
9d		61	112–114	10d		67	260–261
9e		55	>300	10e		71	292–293
9f		38	>300	10f		61	252–254
9g		79	202–203	10g		69	272–274
9h		77	276–278	10h		64	246–247
9i		68	259–260
9j		75	276–278