Molecules (Jun 2013)

A Novel 3a-p-Nitrobenzoylmultiflora-7:9(11)-diene-29-benzoate and Two New Triterpenoids from the Seeds of Zucchini (Cucurbita pepo L)

  • Rina Okada,
  • Keishi Igarashi,
  • Daisuke Shuto,
  • Yasuhiro Ue,
  • Saori Nakasuji,
  • Takashi Kikuchi,
  • Reiko Tanaka,
  • Takeshi Yamada

DOI
https://doi.org/10.3390/molecules18077448
Journal volume & issue
Vol. 18, no. 7
pp. 7448 – 7459

Abstract

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Three novel multiflorane-type triterpenoids, 3a-p-nitrobenzoylmultiflora-7:9(11)-diene-29-benzoate (1), 3a-acetoxymultiflora-7:9(11)-diene-29-benzoate (2), and 3a-acetoxymultiflora-5(6):7:9(11)-triene-29-benzoate (3), along with two known related compounds 4 and 5 were isolated from the seeds of zucchini (Cucurbita pepo L). Their structures were determined on the basis of 1D and 2D NMR spectroscopy and HREIMS. Triterpenoids possessing a nitro group were not isolated previously.

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