Journal
TETRAHEDRON
Volume 70, Issue 37, Pages 6594-6606Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2014.07.006
Keywords
Prieurianin-type limonoids; Absolute configuration; Insecticidal activity; Aphanamixis grandifolia; Meliaceae
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Funding
- Project of National Natural Science Foundation of China [21272275]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Program for Changjiang Scholars and Innovative Research Team in University [PCSIRT1193]
- 111 Project [111-2-07]
- Syngenta Postgraduate Fellowship [SPF-048]
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Twenty-five new highly oxygenated prieurianin-type limonoids, zaphaprinins A-Y (1-25), were isolated from the fruits of Aphanamixis grandifolia. Their structures were elucidated by extensive spectroscopic analyses. Absolute configurations for the key structures like I were assigned by a comprehensive method, such as comparing the calculated electronic circular dichroism (ECD) with the experimental one, single-crystal X-ray and Mosher ester method were also involved for other compounds' study. The solid data from X-ray diffraction allowed revision of the stereochemistry of the C-1-C-14 tetrahydropyran ring-type limonoid. The insecticidal activities of all the limonoids were evaluated. (C) 2014 Elsevier Ltd. All rights reserved.
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