3682-03-9Relevant academic research and scientific papers
Enzymatic Synthesis of Acylphloroglucinol 3-C-Glucosides from 2-O-Glucosides using a C-Glycosyltransferase from Mangifera indica
Chen, Dawei,Sun, Lili,Chen, Ridao,Xie, Kebo,Yang, Lin,Dai, Jungui
supporting information, p. 5873 - 5877 (2016/04/26)
A green and cost-effective process for the convenient synthesis of acylphloroglucinol 3-C-glucosides from 2-O-glucosides was exploited using a novel C-glycosyltransferase (MiCGTb) from Mangifera indica. Compared with previously characterized CGTs, MiCGTb exhibited unique de-O-glucosylation promiscuity and high regioselectivity toward structurally diverse 2-O-glucosides of acylphloroglucinol and achieved high yields of C-glucosides even with a catalytic amount of uridine 5′-diphosphate (UDP). These findings demonstrate for the first time the significant potential of a single-enzyme approach to the synthesis of bioactive C-glucosides from both natural and unnatural acylphloroglucinol 2-O-glucosides. One enzyme, one product: A novel C-glycosyltransferase from Mangifera indica is reported, which is a promiscuous catalyst that synthesizes bioactive C-glucosides from natural and unnatural acylphloroglucinol 2-O-gulcosides in one-pot reactions. High yields of C-glucosides were achieved even with a catalytic amount of uridine 5′-diphosphate. This study demonstrates for the first time the significant potential of a single-enzyme approach for the C-glycodiversification.
Synthesis of vicenin-1 and 3, 6,8- and 8,6-di-C-β-d-(glucopyranosyl- xylopyranosyl)-4′,5,7-trihydroxyflavones using two direct C-glycosylations of naringenin and phloroacetophenone with unprotected d-glucose and d-xylose in aqueous solution as the key reactions
Sato, Shingo,Koide, Tomoyuki
experimental part, p. 1825 - 1830 (2010/10/18)
Vicenin-3 was synthesized from naringenin via a short five-step reaction, which included two regioselective direct C-glycosylations with d-glucose and d-xylose (yields: 22% and 30%, respectively) as the key reactions for a total yield of 4.4%. Vicenin-1 was also synthesized from phloroacetophenone via a 10-step reaction, including the same glycosylation described above, for a total yield of 2.7% with a vicenin-3 yield of 1.7%.
