Dae Sik JangBao Ning SuAlison D. PawlusWilliam P. JonesRobert A. KlepsNuntavan BunyapraphatsaraHarry H.S. FongJohn M. PezzutoA. Douglas KinghornUniversity of Illinois at ChicagoMahidol UniversityKorea Institute of Oriental MedicineOhio State UniversityPurdue University2018-06-212018-06-212005-07-01Journal of Natural Products. Vol.68, No.7 (2005), 1134-1136016338642-s2.0-23844504930https://repository.li.mahidol.ac.th/handle/20.500.14594/16329A highly oxygenated phenolic spiroketone, limnophilaspiroketone (1), was isolated from the aerial parts of Limnophila geoffrayi collected in Thailand. The structure of 1 was determined based on spectroscopic data interpretation. This novel isolate, obtained as a major secondary metabolite constituent, was verified as a racemate using the Mosher ester method. © 2005 American Chemical Society and American Society of Pharmacognosy.Mahidol UniversityBiochemistry, Genetics and Molecular BiologyChemistryMedicinePharmacology, Toxicology and PharmaceuticsArticleSCOPUS10.1021/np050132b