To study the water soluble chemical constituents in rhizoma of Acorus tatarinowii and transformation pathway of nucleosides in the process of water extraction.
Method:
Compounds were isolated and purified by column chromatography on macroporous resin,Sephadex LH-20,ODS and preparative HPLC. Their structures were identified on the basis of physicochemical properties and spectral data. Nucleosides were identified from aqueous extract of A. tatarinowii,and their stability was investigated by HPLC. The possible transformation pathways of nucleosides in aqueous extract of A. tatarinowii were studied by nucleotide addition test.
Compounds 1-4 and 6 were isolated from the genus Acorus for the first time. These compounds further enriched the chemical constituents of A. tatarinowii. The stability and transformation pathway of nucleosides in A. tatarinowii provides reference data for the analysis of nucleosides in A. tatarinowii and other traditional Chinese medicine.