Five chromones from Aloe Vera leaves

Five new chromone components were isolated from the gel of Aloe vera leaves. Their structures have been established as 8-C-glucosyl-noreugenin, 4′-O-glucosyl-isoaloeresin DI, 4′–O-glucosyl-isoaloeresin DII, 8-C-glucosyl-(2′-O-cinnamoyl)-7-O-methylaloediol A and 8-C-glucosyl-(2′-O-cinnamoyl)-7-O-methylaloediol B, from spectroscopic studies.