Four new dihydroagarofuranoid sesquiterpenes (
1-
4) and a new hydroxybenzylsalicylaldehyde, forkienin (
5), togetherwith nine known compounds have been isolated from the roots of
Microtropis fokienensis. The structures of the newcompounds were determined through analyses of physical data. Compounds
3,
4,
7, and
8 exhibited potent antitubercularactivities (MICs
26.0
M) against
Mycobacterium tuberculosis 90-221387
in vitro.