TABLE 3.

¹H and ¹³C NMR data for DBOV-TCMC in pyridine-d₅ at 300 MHz

Carbon	1H NMR δ (J in Hz)	13C NMR (δ)	Multiplicity
1		192.76	C
2	6.02 br s	101.38	CH
3		175.57	C
3-OCH3	3.56 (s)	57.07	OCH3
4	5.79 br s	71.77	CH
4a		87.59	C
5		195.73	C
5a		141.07	C
6	8.20 (s)	121.39	CH
6a		130.30	C
7	7.74 (s)	112.02	CH
8		156.12	C
9		130.09	C
9-C = O		168.63	C
9-CH3CO	3.94 (s)	53.10	CH3
10		138.52	C
10-CH3	2.91 (s)	21.72	CH3
10a		121.94	C
11		167.37	C
11-OH	14.03a br (s)
11a		110.65	C
12		199.68	C
12a		86.02	C
1′	6.28 (dd, J = 9, 3 Hz)	98.08	CH
2′a	2.80 (ddd, J = 13, 9, 3 Hz)	35.29	CH2
2′e	2.38 (ddd, J = 13, 3, 3 Hz)
3′	4.74 (ddd, J = 3, 3, 3 Hz)	71.93	CH
4′	4.00 (dd, J = 3.0, 1.5)	71.77	CH
5′	4.85 (dq, J = 6.0, 1.5)	69.94	CH
6′	1.66 (d, J = 6.0)	18.03	CH3

^aObservable in d₆-acetone.