[Structure determination of the constituents from Citrus grandis Osbeck].

ABSTRACT

OBJECTIVE: To isolate the chemical constituents of the peelings of Citrus grandis and determine their structure. METHOD: Column chromatography and PTLC were applied to isolating and purifying the chemical constituents, and 1H NMR and 13C NMR were used to elucidate their structure. RESULT: 4 compounds were isolated as meranzin hydrate(1), roseoside(2), 8-(3-beta-D-syl-2-hydrox-3-methylbutyl)-7-methoxycoumarin(3) and glucose(4). CONCLUSION: Compound 2 was isolated as a carotenoid from this genus for the first time.