Table 1.

¹H NMR spectral data of the 16-hydroxy betulinic acid (300 MHz, δ, CDCl₃) with reference to Stefan and Dieter (2009).

Position	δH	Position	δH
1	0.84 (s)	17
2	1.24 (m)	18	1.80 (m)
3	3.48 (t)	19	3.52 (m)
4		20
5	0.83 (m)	21
6	1.26 (m)	22	1.80 (m)
7		23	1.21 (s)
8		24	1.01 (s)
9	1.28 (t)	25	0.83 (s)
10		26	1.13 (s)
11	1.18 (m)	27	1.12 (s)
12	1.15 (m)	28
13	2.46 (m)	29	4.39(br.s)/4.41(br.s)
14		30	1.77 (s)
15	1.80 (m)	COOH	7.53 (s)
16	5.18 (d)	OH	7.74 (s)