Biotransformation of Geniposide into Genipin by Immobilized Trichoderma reesei and Conformational Study of Genipin

Table 2

¹H-NMR spectroscopic data of genipin in CDCl₃.

Number	H’s	GI	GII
		(J in Hz)	(J in Hz)
1	1	4.83, d ( = 8.4)	5.28, d ( = 2.8)
3	1	7.54, s	7.50, s
5	1	3.22, m	3.22, m
6a	1	2.90, ddt ( = 16.7, = 8.6, = 1.9)	2.74, dd ( = 17.3, = 7.9)
6b	1	2.08, ddt ( = 16.7, = 9.4, = 2.0)	2.30, d ( = 17.3)
7	1	5.90, s	5.83, s
9	1	2.55, m	3.37, td ( = 8.1, = 2.8)
10	2	4.33, m	4.33, m
12	3	3.74, s	3.72, s