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Molecules 2013, 18(7), 7448-7459; doi:10.3390/molecules18077448

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

Laboratory of Medicinal Chemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
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Received: 6 June 2013 / Revised: 21 June 2013 / Accepted: 21 June 2013 / Published: 26 June 2013
(This article belongs to the Section Natural Products)
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Abstract

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. View Full-Text
Keywords: Cucurbita pepo L; zucchini; 3a-p-nitrobenzoylmultiflora-7:9(11)-dien-29-benzoate; 3a-acetoxymultiflora-7:9(11)-diene-29-benzoate; 3a-acetoxymultiflora-5(6):7:9 (11)-triene-29-benzoate Cucurbita pepo L; zucchini; 3a-p-nitrobenzoylmultiflora-7:9(11)-dien-29-benzoate; 3a-acetoxymultiflora-7:9(11)-diene-29-benzoate; 3a-acetoxymultiflora-5(6):7:9 (11)-triene-29-benzoate
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Tanaka, R.; Kikuchi, T.; Nakasuji, S.; Ue, Y.; Shuto, D.; Igarashi, K.; Okada, R.; Yamada, T. A Novel 3a-p-Nitrobenzoylmultiflora-7:9(11)-diene-29-benzoate and Two New Triterpenoids from the Seeds of Zucchini (Cucurbita pepo L). Molecules 2013, 18, 7448-7459.

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