Table 2.

¹³C NMR data (δ_C) for Kipukasins A–E (1–5; 100 MHz, CDCl₃)

position	1	2a	3a	4	5
2	150.8	150.6	150.7	150.8	150.0
4	163.1	162.9	162.6	162.9	162.5
5	103.6	103.3	104.0	103.4	103.1
6	141.1	140.7	141.2	141.4	141.5
1′	87.9	87.0	88.6	91.1	89.9
2′	73.4	73.4	73.1	73.8	75.5
3′	72.2	72.3	72.9	73.8	70.1
4′	84.2	84.3	84.2	83.5	85.3
5′	62.5	62.2	62.3	62.7	62.2
6′	170.2	169.8	170.3	--	--
7′	20.9	20.7	21.0	--	--
1′	114.8	113.9	104.7	114.7	114.0
2′	162.4	159.4	166.7	162.7	168.8
3′	96.7	97.2	99.5	96.9	96.7
4′	159.3	159.6	165.4	159.2	162.5
5′	107.3	109.6	112.3	108.1	107.7
6′	139.4	139.2	143.5	141.0	140.9
7′	167.5	167.3	--	166.7	166.4
8′	20.6	20.1	25.4	20.9	20.6
2′-OMe	55.8b	55.9	--	55.8c	56.4d
4′-OMe	56.3b	--	55.7	56.5c	55.7d

^aThese shifts were assigned on the basis of HMBC and HMQC correlations.

^b–dAssignments with identical superscripts are interchangeable.