Table 3.

Semisynthetic 20(R)-ocotillol-type saponins

No.	Ingredient name	R1	R2	C-20	C-24	Refs.
27	20(R)-ocotillol	-OH	-H	R	R	[12]
29	M1	-H	-H	R	S	[33]
30	M2	-H	-H	R	R	[33]
31	M3	-H	-Ac	R	S	[33]
32	M4	-H	-Ac	R	R	[33]