Two flavonol glycosides have been isolated and characterised from leaves of Syzygium samarangense. One is the rare mearnsitrin (1) while the second, 2'-C-methyl-5'-O-galloylmyricetin-3-O-α-L-rhamnopyranoside (2), is new. Detailed spectral data are provided for both.
flavonols, Syzygium samarangense
Publication DOI: 10.1016/S0367-326X(99)00013-1Journal NLM ID: 16930290RPublisher: Elsevier
Institutions: Department of Chemistry, Pondicherry University, Pondicherry 605 014, India, Division of Medicinal Chemistry, C.D.R.I, Lucknow 226 003, India
Methods: 13C NMR, 1H NMR, EI-MS, IR, FAB-MS, acid hydrolysis, alkaline hydrolysis, UV, optical rotation measurement, PC
Found