Table 1.

¹³C-NMR spectroscopic data (75 MHz) for quercetin and product 2.

Position	Quercetin (in CD3OD)	Product 2 (in D2O + NH3)
2, qC	147.5	113.7
3, qC	136.5	180.2
4, qC	176.5	174.4
5, qC	161.0	157.9
6, CH	99.5	101.7
7, qC	166.0	159.8
8, CH	94.5	96.3
9, qC	156.7	154.5
10, qC	104.0	102.0
1′, qC	123.0	121.6
2′, CH	116.0	116.9
3′, qC	145.7	141.9
4′, qC	148.1	149.3
5′, CH	116.5	117.2
6′, CH	121.0	120.3