Table 2.

¹³C-NMR Data for compounds 3–7 in CDCl₃ (100 MHz, δ ppm).

No.	3	4	5	6	7
2	173.3, qC	173.2, qC	173.1, qC	172.7, qC	173.1, qC
3	120.7, qC	122.9, qC	119.8, qC	124.3, qC	121.4, qC
4	150.6, qC	158.1, qC	152.6, qC	155.4, qC	149.8, qC
5	68.5, CH2	70.7, CH2	68.6, CH2	69.8, CH2	68.5, CH2
6	118.6, CH	118.3, CH	116.7, CH	118.1, CH	118.5, CH
7	133.3, CH	132.6, CH	135.1, CH	134.3, CH	133.8, CH
8	19.4, CH3	19.3, CH3	63.4, CH2	19.3, CH3	19.4, CH3
9	119.5, CH	23.2, CH2	119.3, CH	70.1, CH	122.6, CH
10	140.8, CH	36.7, CH2	141.9, CH	75.4, CH	135.0, CH
11	26.6, CH2	67.3, CH	26.6, CH2	25.0, CH2	36.7, CH2
12	12.9, CH3	23.9, CH3	12.8, CH3	10.2, CH3	61.5, CH2