20-04-2017 дата публикации
Номер: US20170107242A1
Принадлежит:
The invention relates to a method for producing derivatives of O-α-glucosylated flavonoid, comprising at least one step of incubating a glucansucrase with a flavonoid and at least one sucrose, the flavonoid being a flavonoid which is monohydroxylated or hydroxylated in a non-vicinal manner on the B cycle. The invention also relates to novel O-α-glucosylated flavonoid derivatives, and to the use thereof. 2. The process as claimed in claim 1 , wherein just one of the groups chosen from R claim 1 , R claim 1 , R claim 1 , Rand R claim 1 , preferably R claim 1 , represents a hydroxyl group claim 1 ,{'sub': 8', '9', '10', '11', '12', '1', '10', '5', '9', '4', '9', '1', '3', '2', '3', '1', '3', '2', '2', '2', '3', '1', '3', '1', '3', '1', '3', '1', '3, 'the other groups among R, R, R, Rand R, which may be identical or different, being chosen from the group comprising a hydrogen atom; a linear or branched, saturated or unsaturated C-Chydrocarbon-based group, optionally interrupted with at least one heteroatom chosen from O, N or S; a halogen atom; a C-Caryl; a C-Cheterocycle; a (C-C)alkoxy group; a C-Cacyl; a C-Calcohol; a —COOH; —NH; —CONH; —CHO; —SH; —C(O)O(C-C) group; a C-Camine; a C-Cimine; a nitrile group; a C-Chaloalkyl; and a C-Cthioalkyl; a —C(W) group; and an —O(W) group; W representing a chain consisting of from 1 to 6 glycoside(s);'}{'sub': 8', '9', '11', '12, 'the R, R, Rand Rgroups preferably representing hydrogen atoms.'}3. The process as claimed in claim 2 , wherein Rrepresents a hydroxyl group and R claim 2 , R claim 2 , Rand Rrepresent hydrogen atoms.4. The process as claimed in claim 1 , wherein:{'sub': 8', '10', '11', '12', '10, 'Rand just one of the groups chosen from R, Rand R, preferably R, represent a hydroxyl group,'}{'sub': 9', '10', '11', '12', '1', '10', '5', '9', '4', '9', '1', '3', '2', '3', '1', '3', '2', '2', '2', '3', '1', '3', '1', '3', '1', '3', '1', '3, 'Rand the other groups among R, Rand R, which may be identical or different, being ...
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