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Chinese Journal of Organic Chemistry >

2013 , Vol. 33 >Issue 06: 1304 - 1308

DOI: https://doi.org/10.6023/cjoc201303029

Articles

Pentacyclic Triterpenoids from the Roots of Rhodomyrtus tomentosa

  • Xiong Juan ,
  • Huang Ya ,
  • Tang Yu ,
  • You Mei ,
  • Hu Jinfeng
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  • Department of Natural Products Chemistry, School of Pharmacy, Fudan University, Shanghai 201203

Received date: 2013-03-19

  Revised date: 2013-04-11

  Online published: 2013-04-17

Supported by

Project supported by the National Natural Science Foundation of China (Nos.81273401, 81202420), the Ph.D.Programs Foundation of Ministry of Education of China (Nos.20120071110049, 20120071120049) and the Grant of Ministry of Science and Technology (MOST, No.2011ZX09307-002-01).

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Abstract

Eight pentacyclic triterpenoids were isolated from the methanol extract of the roots of Rhodomyrtus tomentosa.By application of spectroscopic methods (especially 1D-, 2D-NMR, MS), the structures were established as 23-cis-p-coumaroyl- oxy-2α,3β-dihydroxyolean-12-en-28-oic acid (1), 23-trans-p-coumaroyloxy-2α,3β-dihydroxyolean-12-en-28-oic acid (2), 3β- O-trans-ferulyl-2α,23-dihydroxyolean-12-en-28-oic acid (3), 3β-O-trans-p-coumaroyl-2α,23-dihydroxyolean-12-en-28-oic acid (4), 3β-O-cis-p-coumaroyl-2α,23-dihydroxyolean-12-en-28-oic acid (5), maslinic acid (6), arjunolic acid (7), and 2α,3β-dihydroxytaraxer-20-en-28-oic acid (8).Among them, compounds 1 and 3 were new oleanane-type triterpenoids, while compounds 2, 4～6 and 8 were isolated from this plant for the first time.This is the first report on the chemical constituents from the roots of R.tomentosa.

Key words： Rhodomyrtus tomentosa; myrtaceae; chemical constituents; pentacyclic triterpenoids

Cite this article

Xiong Juan , Huang Ya , Tang Yu , You Mei , Hu Jinfeng . Pentacyclic Triterpenoids from the Roots of Rhodomyrtus tomentosa[J]. Chinese Journal of Organic Chemistry, 2013 , 33(06) : 1304 -1308 . DOI: 10.6023/cjoc201303029

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