Ohkoshi E, Makino M, Fujimoto Y
College of Pharmacy, Nihon University, Funabashi, Chiba, Japan.
Chem Pharm Bull (Tokyo). 2000 Nov;48(11):1774-5. doi: 10.1248/cpb.48.1774.
A novel bisnorkaurenic acid-type diterpenelactone, named mikanialactone (1), was isolated along with five known kaurenic acid-type diterpenes (2-6) from the aerial parts of Mikania hirsutissima DC (Compositae). The structure of the new bisnorditerpene was determined by spectroscopic means.
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