Table 2: 13C NMR chemical shifts (δ) of compounds 1 ÷ 6.

CarbonCompounds
1a2b3b4b5b6c

C-281.180.280.077.073.8162.8
C-345.244.344.240.337.8106.6
C-4193.1192.2190.865.659.5176.4
C-5129.9129.7128.8128.3159.7126.5
C-6111.9110.1110.3108.892.0115.1
C-7166.9168.0166.2156.3161.5161.9
C-8103.9100.9100.9103.093.5102.6
C-9165.4162.2163.6155.4156.5157.5
C-10115.1126.2114.7118.7106.3116.1
C-1′140.7130.3138.7140.4141.0131.3
C-2′127.4127.9115.5126.0126.3126.2
C-3′129.7130.1135.2128.7128.8129.1
C-4′129.6128.8135.4128.3128.1131.6
C-5′129.7130.1115.4128.7128.8129.1
C-6′127.4127.9115.9126.0126.3126.2
OCH355.755.6

aSolvent CD3OD.
bSolvent CDCl3.
cSolvent DMSO-d6.