A kuguaglycoside is one of several chemical compounds (cucurbitane triterpenoid glycosides) isolated from the roots of the bitter melon vine (Momordica charantia, kǔguā in Chinese) by J.-C. Chen and others.[1]
Kuguaglycoside A: 3β-hydroxy-7β-methoxycucurbita-5,24-dien-23-yl β-glucopyranoside, C 37H 62O 8[1]
Kuguaglycoside B: 3β-hydroxy-25-methoxycucurbita-5,23-dien-7β-yl β-glucopyranoside, C 37H 62O 8[1]
Kuguaglycoside C: 7β-(β-glucopyranosyloxy)-3β-hydroxycucurbita-5,23,25-trien-19-al, C 36H 56O 8 (colorless needles)[1]
Kuguaglycoside D: 3β,19,23-trihydroxycucurbita-5,24-dien-7β-yl β-glucopyranoside, C 36H 60O 9[1]
Kuguaglycoside E: 23-(β-glucopyranosyloxy)-3β,19-dihydroxycucurbita-5,24-dien-7β-yl β-glucopyranoside, C 42H 70O 14[1]
Kuguaglycoside F: 23-(β-glucopyranosyloxy)-7β-methoxycucurbita-5,24-dien-3β-yl β-allopyranoside, C 43H 72O 13[1]
Kuguaglycoside G: 23-(β-glucopyranosyloxy)-3β-hydroxycucurbita-5,24-dien-7β-yl β-glucopyranoside, C 42H 70O 13[1]
Kuguaglycoside H: 23-(β-glucopyranosyl(1→2)-β-glucopyranosyl)-3β-hydroxycucurbita-5,24-dien-7β-yl β-glucopyranoside, C 48H 80O 18 (colorless needles)[1]
Kuguaglycoside B is also found in the fruit of M. charantia.[2]
References
^ abcdefghijJian-Chao Chen, Lu Lu, Xian-Ming Zhang, Lin Zhou, Zhong-Rong Li, and Ming-Hua Qiu (2008), "Eight New Cucurbitane Glycosides, Kuguaglycosides A–H, from the Root of Momordica charantia L.". Helvetica Chimica Acta, volume 91, issue 5, pages 920-928. doi:10.1002/hlca.200890097
^Jie-Qing Liu, Jian-Chao Chen, Cui-Fang Wang and Ming-Hua Qiu (2009), "New Cucurbitane Triterpenoids and Steroidal Glycoside from Momordica charantia". Molecules, volume 14, pages 4804-4813 doi:10.3390/molecules14124804
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