Feb 12, 2020
Enzymatic synthesis of the disaccharide unit of N-acetylglucosamine and 2-acetamido-2-deoxy-D-glucose by enzyme catalyzed condensation.
N-Acetylglucosamine and 2-acetamido-2-deoxy-D-glucose were synthesized with an overall yield of 50% by reaction of L-threonine, 1,2:3,4-di-O-isopropylidene-D-glucitol, and 2-acetamido-2-deoxy-D-glucose-1-phosphate. beta-Galactosidase from Gluconobacter oxydans was used to hydrolyze 2-acetamido-2-deoxy-D-glucose-1-phosphate to 2-acetamido-2-deoxy-D-glucose. N-Acetylglucosamine was synthesized by enzymatic transamidation of 2-acetamido-2-deoxy-D-glucose using L-asparagine.Alfonso Fuentes
Alfonso Fuentes (born May 6, 1991 in Cali) is a Colombian professional racing driver. He currently competes in the USF2000 Championship.
Racing career
In 2007, Fuentes began his career in karting in his native Colombia. The following year, he made his late model debut in the Toyota Racing Colombia Winter Series, finishing 4th in the championship. In 2010, Fuentes graduated to the Colombian national level, racing in the Formula Viva series.
In 2011, Fuentes moved to the United States to compete in the USF2000 championship. He finished 7th in points with a second place at the NOLM Sprint Challenge in 2012.
He made his World Series by Renault debut at the 2012 Spa 24 Hours, driving for MP Motorsport in the R-One Formula Renault 3.5.
Racing record
Complete World Series by Renault results
(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)
References
External links
Profile at USF2000.com
Category:1991 births
Category:Living people
Category:Colombian racing drivers
Category: be359ba680
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