Chemical constituents of Stachys parviflora

The work embodied in this book is mainly concerned with the isolation and characterization of chemical constituents of Stachys parviflora, Linn., which belongs to the family Lamiaceae (formerly called Labiateae). The isolated compounds, whether new or have been previously reported in the literature, were characterized by using different spectroscopic techniques including 1H NMR, 13C NMR, DEPT, HMQC, HMBC, COSY 45,NOESY, EI-MS, FAB-MS, IR and UV.The studies on Stachys parviflora Linn., resulted in the isolation and characterization of thirteen compounds consisting of five new including one benzene derivative, one flavone glycoside and three triterpenoidal saponins, along with eight known compounds including two monoterpenoids, three flavone glycosides, one triterpene, two sterols and one steroidal saponin. All the known compounds have not been reported from this plant because no work was previously done on this specie of Stachys.The new constituents isolated are parvifloroside B (55), stachyfloroside A (56), stachyssaponin A (57), stachyssaponin B (58) and stachyssaponin C (59).