Cpd	R1	R2	R3	R4	R5	R6	R7
1	β-OH	=O	=O	β-O-Ac	=O	α-CH3	COOBu
2	=O	β-OH	=O	H	α-OH	α-CH3	COOBu
3	β-OH	β-OH	=O	H	=O	α-CH3	COOBu
4	β-OH	=O	=O	β-O-Ac	α-OH	α-CH3	COOH
5	=O	H	=O	H	α-OH	β-CH3	COOH
6	=O	H	=O	H	α-OH	β-CH3	COOCH3
7	β-OH	H	=O	H	α-OH	β-CH3	COOH
8	β-OH	H	=O	H	α-OH	β-CH3	COOCH3
9	=O	β-OH	=O	H	α-OH	β-CH3	COOH
10	=O	β-OH	=O	H	α-OH	β-CH3	COOCH3
11	β-OH	β-OH	=O	H	=O	β-CH3	COOH
12	β-OH	β-OH	=O	H	=O	β-CH3	COOCH3
13	β-OH	β-OH	=O	H	α-OH	β-CH3	COOH
14	β-OH	β-OH	=O	H	α-OH	β-CH3	COOCH3
15	=O	β-OH	=O	H	=O	β-CH3	COOH
16	=O	β-OH	=O	H	=O	β-CH3	COOCH3
17	β-OH	β-OH	=O	H	α-OH	α-CH3	COOCH3
18	β-OH	=O	=O	H	α-OH	α-CH3	COOCH3
19	=O	α-OH	=O	H	α-OH	α-CH3	COOCH3
20	β-OH	α-OH	=O	H	α-OH	α-CH3	COOCH3
21	O-CHO	β-OH	=O	β-OH	=O	β-CH3	COOH
22	=O	α-OH	=O	H	α-OH	α-CH3	COOH
23	=O	β-OH	=O	H	=O	α-CH3	COOH
24	=O	=O	=O	β-O-COCH3	=O	α-CH3	COOEt
25	β-OH	β-OH	=O	β-O-COCH3	=O	α-CH3	COOCH3
26	β-OH	=O	=O	=O	=O	α-CH3	COOH
27	=O	β-OH	β-OH	H	=O	α-CH3	COOH
28	β-OH	=O	=O	β-O-Ac	=O	β-CH3	COOH
29	=O	=O	=O	β-O-Ac	=O	β-CH3	COOH
30	=O	=O	=O	H	=O	β-CH3	COOH
31	β-OH	β-OH	=O	β-O-Ac	=O	α-CH3	COOH
32	β-OH	=O	=O	H	=O	α-CH3	COOH
33	=O	=O	=O	H	α-OH	α-CH3	COOH
34	β-OH	β-OH	=O	H	α-OH	α-CH3	COOH
35	β-OH	β-OH	=O	β-OH	=O	β-CH3	COOH
36	=O	β-OH	=O	β-OH	=O	α-CH3	COOH
37	=O	=O	=O	β-OH	=O	α-CH3	COOH