Eight new anthocyanins, ternatins C1-C5 and D3 and preternatins A3 and C4 from young clitoria ternatea flowers

N Terahara; K Toki; N Saito; T Honda; T Matsui; Y Osajima

doi:10.1021/np980160c

Eight new anthocyanins, ternatins C1-C5 and D3 and preternatins A3 and C4 from young clitoria ternatea flowers

J Nat Prod. 1998 Nov;61(11):1361-7. doi: 10.1021/np980160c.

Authors

N Terahara¹, K Toki, N Saito, T Honda, T Matsui, Y Osajima

Affiliation

¹ Department of Food Science and Technology, Faculty of Agriculture, Kyushu University, Fukuoka 812, Japan.

PMID: 9834153
DOI: 10.1021/np980160c

Abstract

Eight new anthocyanins 1-8 (ternatins C1, C2, C3, C4, C5, and D3 and preternatins A3 and C4) were isolated from Clitoria ternatea flowers. By the application of chemical, UV-vis, and FABMS methods, the structures of 1-6 were postulated as delphinidin 3-malonylglucoside having 3'-GCGC-5'-G, 3'-GCGCG-5'-G, 3'-GC-5'-G, 3'-GCG-5'-G, 3'-G-5'-G, and 3'-GC-5'-GC, and compounds 7 and 8 as delphinidin 3-glucoside having 3'-GCG-5'-GCG and 3'-GCG-5'-G as side chains, respectively, in which Dp is delphinidin, G is D-glucose, and C is p-coumaric acid. The structures of the compounds 1, 3-5, and 7 were established completely by additional NMR methods.