Thaixylogranins A-H: eight new limonoids from the Thai mangrove, Xylocarpus granatum

Eight new limonoids, including seven mexicanolides, were isolated from the seeds of a Thai mangrove, Xylocarpus granatum. The structures of these limonoids were established on the basis of HRESIMS and NMR spectroscopic data. The new limonoids exhibited weak cytotoxicities against human tumor cells.