(S)-2,3-dihydroxypropanoic acid hemicalcium salt 、 蔗糖 在
wild-type sucrose phosphorylase from Leuconostoc mesenteroides produced in E. coli DH10B cells 作用下,
反应 72.0h,
以33%的产率得到(S)-2-O-α-D-glucopyranosyl glycerate
参考文献:
名称:
Single-step enzymatic synthesis of (R)-2-O-α-d-glucopyranosyl glycerate, a compatible solute from micro-organisms that functions as a protein stabiliser
The present invention relates to a method for producing 2-O-(α-D-glucopyranosyl)-glycerate from a glucosyl donor and a glucosyl acceptor comprising the steps:
- providing a sucrose phosphorylase (EC 2.4.1.7),
- incubating said sucrose phosphorylase with a mixture comprising a glucosyl donor and glyceric acid as glucosyl acceptor and isolating and/or purifying 2-O-(α-D-glucopyranosyl)-glycerate.
申请人:Faculdade de Ciências da Universidade de Lisboa
公开号:US20180170955A1
公开(公告)日:2018-06-21
A compound of formula I:
or a salt thereof, wherein:
R
1
is —OC(H)(X)(CH
2
)
n
C(═O)OH;
R
2
is —OH, —N
3
, or —N(H)C(═O)CH
3
; or
R
1
and R
2
together with the carbon atoms to which they are attached form
R
3
is —H, —CH
3
, —CH
2
C(═O)OH, or —CH
2
OH;
X is —H, —CH
3
, —CH
2
OH, or CH
2
C(═O)OH; and
n is 0 or 1.
Single-step enzymatic synthesis of (R)-2-O-α-d-glucopyranosyl glycerate, a compatible solute from micro-organisms that functions as a protein stabiliser
Regioselective glucosylation of R-glycerate catalysed by sucrose phosphorylase in the presence of sucrose as the donor substrate provided the natural compatible solute (R)-2-O-α-D-glucopyranosyl glycerate with complete regioselectivity in an optimised synthetic yield of 90% R-glycerate converted and a concentration of about 270 mM.