A mixture of triterpene methyl ethers obtained from the leaf wax of Cuban sugar cane (Saccharum officinarum L.) has been shown to consist predominantly of arundoin (fernenol methyl ether) and sawamilletin (taraxerol methyl ether), by means of preparative GLC, mass spectrometry and direct comparison with authentic specimens. Evidence for the presence, in trace amounts, of a third component having identical
The Aromatisation Reaction of Δ<SUP>7, 9 (11)</SUP>-Triterpenoids
作者:MASAMICHI FUKUOKA、SHINSAKU NATORI
DOI:10.1248/cpb.22.1035
日期:——
The "anthrasteroid"-type rearrangement of bauera-7, 9 (11)-dienyl acetate (1) was reexamined and the product was proved not to be 2 but to be expressed by 6. The aromatisation reaction was applied for 7, 9 (11)-dienes (13, 14, 15, 16) of tirucallane, lanostane, fernane, and arborane series and the same type of hydrocarbons (17, 18, 19, 20) were obtained in good yields.
Bauerenol (Ia) and a new triterpene alcohol, Multiflorenol have been isolated from the bark of Gelonium multiflorum A. Juss. On the basis of physical and chemical evidences. Structure Va is suggested for multiflorenol.
从多花Gelonium A. Juss的树皮中分离出了Bauerenol(Ia)和一种新的三萜醇Multiflorenol 。根据理化依据。建议将结构Va用于多元酚。