5 NEW ANTHOCYANINS, TERNATINS A3, B4, B3, B2, AND D2, FROM CLITORIA-TERNATEA FLOWERS

Five new ternatins 1-5 have been isolated from Clitoria tentatea flowe rs, and the structures have been determined by chemical and spectrosco pic methods as delphinidin 3-malonylG having 3'-GCG-5'-GCG, 3'-GCG-5'- GC, 3'-GCGCG-5'-GC, 3'-GCCC-5'-GCG, and 3'-GCGC-5'-GC side chains, res pectively, in which G is D-glucose and C is p-coumaric acid. Pigment 1 had symmetric 3',5'-side chains. Compounds 3 and 4 are structural iso mers. These ternatins were shown to form an intramolecular stacking be tween the aglycon ring and the 3',5'-side chains in solution.