Two new tocopherol polymers from the seeds of Euryale ferox.
Two new tocopherol polymers, chroman-type dimer named ferotocodimer A (1) and spiro-type trimer named ferotocotrimer E (2), were isolated from the seeds of Euryale ferox. Their structures were elucidated on the basis of spectroscopic methods including HR-ESI-MS and 1D and 2D NMR. The absolute configurations of 1 and 2 were determined by CD and ROESY experiments.
State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China.
Zhi
Z
Han
Jun
J
Luo
Ling-Yi
LY
Kong
D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D030702:Nymphaeaceae / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry / Q000302:isolation & purification*; D012639:Seeds / Q000737:chemistry; D024505:Tocopherols / Q000737:chemistry / Q000302:isolation & purification*
D004365:Drugs, Chinese Herbal; D011108:Polymers; C576108:ferotocodimer A; C576109:ferotocotrimer E; D024505:Tocopherols