SYNTHETIC INTERMEDIATE OF 1-(2-DEOXY-2-FLUORO-4-THIO-ß-D-ARABINOFURANOSYL)CYTOSINE, SYNTHETIC INTERMEDIATE OF THIONUCLEOSIDE, AND METHOD FOR PRODUCING THE SAME
Simple one-pot regioselective 6-O-phosphorylation of carbohydrates and trehalose desymmetrization
作者:A. Abragam Joseph、Chun-Wei Chang、Cheng-Chung Wang
DOI:10.1039/c3cc47180b
日期:——
Biologically essential carbohydrate 6-phosphates, especially trehalose 6-phosphate, can be synthesized easily in excellent overall yields in 2 steps involving minimum protecting group manipulations. We can cleave the diphenylphosphate group for further synthetic objectives.
Synthesis, Spectra, and Theoretical Investigations of 1,3,5-Triazines Compounds as Ultraviolet Rays Absorber Based on Time-Dependent Density Functional Calculations and three-Dimensional Quantitative Structure-Property Relationship
作者:Xueding Wang、Yilian Xu、Lu Yang、Xiang Lu、Hao Zou、Weiqing Yang、Yuanyuan Zhang、Zicheng Li、Menglin Ma
DOI:10.1007/s10895-018-2235-2
日期:2018.3
A series of 1,3,5-triazines were synthesized and their UV absorption properties were tested. The computational chemistry methods were used to construct quantitative structure-property relationship (QSPR), which was used to computer aided design of new 1,3,5-triazines ultraviolet rays absorber compounds. The experimental UV absorption data are in good agreement with those predicted data using the Time-dependent
A Novel Acid-Catalyzed <i>O</i>-Benzylating Reagent with the Smallest Unit of Imidate Structure
作者:Kohei Yamada、Hikaru Fujita、Munetaka Kunishima
DOI:10.1021/ol302222p
日期:2012.10.5
trimerization of the smallest unit of benzyl imidate leads to 2,4,6-tris(benzyloxy)-1,3,5-triazine (TriBOT), which can be used as an acid-catalyzed O-benzylating reagent. The reaction of various functionalized alcohols with 0.4 equiv of TriBOT in the presence of trifluoromethanesulfonic acid afforded the benzyl ethers in good yields. TriBOT is an inexpensive stable crystalline solid with high atom economy
Stereoselective Electro‐2‐deoxyglycosylation from Glycals
作者:Miao Liu、Kai‐Meng Liu、De‐Cai Xiong、Hanyu Zhang、Tian Li、Bohan Li、Xianjin Qin、Jinhe Bai、Xin‐Shan Ye
DOI:10.1002/anie.202006115
日期:2020.8.24
report a novel and highly stereoselective electro‐2‐deoxyglycosylation from glycals. This method features excellent stereoselectivity, scope, and functional‐group tolerance. This process can also be applied to the modification of a wide range of natural products and drugs. Furthermore, a scalable synthesis of glycosylated podophyllotoxin and a one‐pot trisaccharide synthesis through iterative electroglycosylations
Catalytic Cage Formation via Controlled Dimerization of Norbornadienes: An Entry to Functionalized HCTDs (Heptacyclo[6.6.0.0<sup>2,6</sup>.0<sup>3,13</sup>.0<sup>4,11</sup>.0<sup>5,9</sup>.0<sup>10,14</sup>]tetradecanes)
作者:Hee Nam Lim、Guangbin Dong
DOI:10.1021/acs.orglett.6b00207
日期:2016.3.4
A general and practical catalytic method has been developed for the rapid synthesis of HCTD (heptacyclo[6.6.0.02,6.03,13.04,11.05,9.010,14]tetradecanes) and various new 7,12-disubstituted HCTDs from norbornadienes. Compared to the known approaches, this new protocol avoids stoichiometric metals, utilizes commercially available reagents as catalysts, and affords higher yields and significantly improved