supported by the National Natural Science Foundation of China(Nos.21977115 and 21672248).
Comprehensive Summary The configuration of the anomeric glycosidic linkages is crucial for maintaining the biological functions and activities of carbohydrate molecules.However,their stereochemistry control in glycosy...
A novel, practical and concise synthesis of 1,3,4,6-tetra-O-acetyl-l-gulose is described, using d-glucurono- lactone as the starting material and other inexpensive and readily available agents (22% overall yield in 9...
The cyanation-esterification reaction of a-keto esters catalysed by N-heterocyclic carbenes (NHCs) is developed Under the catalysis of 10 tool% 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene, aromatic and alipha...
This work was supported by the National Natural Science Foundations of China (No. 21171079) and Science Development Project of Lanzhou (No. 2014-2-34).
A series of CO-releasing molecules [M(CO)5L] (M=Cr, W, Mo, L=acetyl salicylamide 3-pyridine, 1--3; L= N,N-dimethyl-4-pyridine, 4-6; L=nicotinamide, 7--9; L=4-CHO-pyridine, 10--12) were synthesized. And in this pap...
A new synthesis of 2-phenylpyrano[3,2-b]phenothiazin-4(6H)-one derivatives was reported. First 2,10-diacetyl-3-hydroxyphenothiazine (2) was converted into their benzoyloxy esters (3a--3j) using different aro- ma...
Project supported by the Youth Natural Science Foundation of Yantai Normal University (No. 042902), the Youth Natural Science Foundation of Shandong Provincial Education Department (No. 200139) and the National Natural Scientific Foundation of China (Nos. 20173032, 10404030 and 20373071).
Arylamine N-acetyltransferases (NATs, EC 2.3.1.5) catalyze an acetyl group transfer from acetyl coenzyme A (AcCoA) to primary arylamines and play a very important role in the metabolism and bioactivation of drugs ...
A new type of intramolecular electrophilic rearrangements involving the shift of alkoxycarbonyl or acetyl groups from a carbon atom to an N-anionic center is presented.
theNaturalScienceFoundationofShandongProvince (No.Q99B16 );theNationalNaturalScienceFoundationofChina (No .2 0 0 75 0 13)
The crystal structure ofN-(2,3,4,6-tetra-O-acetyl-β-D-glycosyl)-thiocarbamic benzoyl hydrazine ( C_(22)H_(27)N_3O_9S) wasdetermined by X-ray diffraction method. The hexopyranosyl ring adopts a chair conformation. All...
Project supported by the Ministry of Science and Technology of China.
The protected apiose-containing disaccharide, benzyl O-(2,3, 3'-tri-O-acetyl-β-D-apiofuranosyl)-( 1→3)-2, 4-di-O-benzoyl-α-D-xylopyranoside, was synthesized and its X-ray structure provided.