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2 results on '"Qi, Fan"'

1. Chuktabrins A and B, two novel limonoids from the twigs and leaves of Chukrasia tabularis

Author

Cheng-Qi Fan, Chuan-Rui Zhang, Yang Lu, Jian-Min Yue, Yan Wu, Li Zhang, and Sheng-Ping Yang

Subjects
Limonins, biology, Plant Stems, Stereochemistry, Chemistry, Organic Chemistry, Chukrasia tabularis, biology.organism_classification, Biochemistry, Plant Leaves, X-Ray Diffraction, Xylocarpus granatum, Phragmalin, Physical and Theoretical Chemistry, Meliaceae, Nuclear Magnetic Resonance, Biomolecular
Abstract

Two novel limonoids, chuktabrin A (1), featuring the unique motifs of a 1,3-dioxolan-2-one and a 3,4-dihydro-2 H-pyran, and chuktabrin B (2), possessing an unprecedented polycyclic skeleton, were isolated from Chukrasia tabularis. The structures of 1 and 2 bearing a biosynthetically extended C3 and C2 unit at C-15, respectively, were elucidated on the basis of spectroscopic data, and that of 1 was confirmed by a single-crystal X-ray diffraction.

Published
2008

2. Chuktabrins A and B, Two Novel Limonoids from the Twigs and Leaves of Chukrasia tabularis.

Author

Chuan-Rui Zhang, Cheng-Qi Fan, Li Zhang, Sheng-Ping Yang, Yan Wu, Yang Lu, and Jian-Min Yue

Subjects
*LIMONOIDS, *PLANT extracts, *CHUKRASIA, *PYRAN, *X-ray diffraction, *ORGANIC compounds
Abstract

Two novel limonoids, chuktabrin A ( 1), featuring the unique motifs of a 1,3-dioxolan-2-one and a 3,4-dihydro-2 H-pyran, and chuktabrin B ( 2), possessing an unprecedented polycyclic skeleton, were isolated from Chukrasia tabularis. The structures of 1and 2bearing a biosynthetically extended C3 and C2 unit at C-15, respectively, were elucidated on the basis of spectroscopic data, and that of 1was confirmed by a single-crystal X-ray diffraction. [ABSTRACT FROM AUTHOR]

Published
2008
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