Chukvelutins A-C, 16-norphragmalin limonoids with unprecedented skeletons from Chukrasia tabularis var. velutina.
Three new 16-norphragmalin limonoids, chukvelutins A-C (1-3), were isolated from the stem bark of Chukrasia tabularis var. velutina, which possess unprecedented skeletons, featured with a characteristic ketal moiety between the phragmalin skeleton and a biosynthetically extended isobutyryl group at C-15. Their structures were elucidated by extensive spectroscopic technologies.
Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China.
Jun
J
Luo
Jun-Song
JS
Wang
Jian-Guang
JG
Luo
Xiao-Bing
XB
Wang
Ling-Yi
LY
Kong
D036701:Limonins / Q000737:chemistry* / Q000302:isolation & purification*; D029582:Meliaceae / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
D036701:Limonins; C541477:chukvelutin A; C541478:chukvelutin B; C541479:chukvelutin C