Chemical constituents of Salvia dichroantha

The present study reports the isolation of two megastigmane glycosides, premnaionoside (1), and salvionoside B (2), an aliphatic alcohol glycoside, (3R)-1-octen-3-ol-3-O-β-D-xylopyranosyl-(1→6)-O-β-D-glucopyranoside (3), a flavonoid, kaempferol 3,7,4′-trimethyl ether (4), two hydroxycinnamic acid derivatives, rosmarinic acid 5) and 3-O-methyl-rosmarinic acid (6) as well as sucrose from the aerial parts of Salvia dichroantha. This is the first report on the occurrence of compounds 1, 3 and 4 in the genus Salvia while 1 is being reported for the first time from Lamiaceae. This work also represents the first phytochemical work on the aerial parts of S. dichroantha which is endemic to Turkey.