[Studies on circular dichroism of diterpenoids from Mallotus anomalus and sesquiterpenoid tussilagone].
This paper reports the circular dichroism and octant rule projection of 5 diterpenoids from Mallotus anomalus (compounds 1-5) and 3 sesquiterpenoids tussilagones (compounds 6-8): they are new compounds. Using ketone octant rule, planar cyclohexenone rule, beta, gamma-unsaturated ketone rule and Harada rule, the nature of A/B and B/C ring fusion was determined, thus, their absolute configurations were assigned.
Mi
J F
JF
Shanghai Institute of Materia Medica, Academia Sinica.
Xu
R S
RS
Yang
Y P
YP
Yang
P M
PM
D002942:Circular Dichroism; D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D008968:Molecular Conformation; D012717:Sesquiterpenes; D013729:Terpenes / Q000737:chemistry* / Q000302:isolation & purification
D004224:Diterpenes; D004365:Drugs, Chinese Herbal; D012717:Sesquiterpenes; D013729:Terpenes; C054337:tussilagone