Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Koki Matsubara"'
Autor:
Kazuya Miyamoto, Kazuyuki Matsumoto, Koki Matsubara, Takayoshi Miyake, Shigeru Horiguchi, Ryuta Takenaka, Susumu Shinoura, Shigeatsu Fujiki
Publikováno v:
Internal Medicine. 62:1293-1298
Autor:
Kazuya, Miyamoto, Kazuyuki, Matsumoto, Koki, Matsubara, Takayoshi, Miyake, Shigeru, Horiguchi, Ryuta, Takenaka, Susumu, Shinoura, Shigeatsu, Fujiki
Publikováno v:
Internal medicine (Tokyo, Japan).
A 72-year-old woman was referred for the examination of wall thickening of the bile duct and a polyp-like lesion on the gallbladder. The bile duct and gallbladder lesions were observed to be continuous on abdominal ultrasonography. We performed a bil
Publikováno v:
The Computer Journal.
Policy-based chameleon hash is a useful primitive for blockchain rewriting systems. It allows a user to create a mutable transaction associated with an access policy, whereas a modifier who possesses sufficient rewriting privileges from a trusted aut
Autor:
Kentaro, Okuma, Shuhei, Yahata, Kahori, Kage, Kazunori, Munakata, Noriyoshi, Nagahora, Kosei, Shioji, Koki, Matsubara
Publikováno v:
Natural product communications. 11(7)
Reaction of camphor hydrazone with TeCI₄ under basic conditions gave an isomeric mixture of vinyl ditelluride and Wagner-Meerwein rearranged ditelluride. Initially formed tellurocamphor enolized and oxidized to give vinyl telluride, whereas telluro
Autor:
Koki Matsubara, Teruaki Mukaiyama
Publikováno v:
Chemistry Letters. 23:247-250
In the presence of a catalyst generated from SnCl4 and AgClO4, or Yb(OTf)3 various glycosyl azides are synthesized in high yields with complete stereoselectivities from peracylated sugars and trimethylsilyl azide by choosing a suitable solvent such a
Publikováno v:
Synthesis. 1994:1368-1373
Autor:
Teruaki Mukaiyama, Koki Matsubara
Publikováno v:
Chemistry Letters. 22:2145-2148
In the presence of a catalyst generated from SnCl4 and a silver salt, various 2-amino-2-deoxy-α-D-glucopyranosides or galactopyranosides are stereoselectively synthesized in good yields with high stereoselectivities through anomerization step starti
Publikováno v:
Chemistry Letters. 22:1373-1376
In the presence of a catalytic amount of active acidic species generated from SnCl4 and AgClO4, various α-glucosides are stereoselectively synthesized in excellent yields from 1-O-2′-(2′-methoxyethoxy)acetyl-2,3,4,6-tetra-O-benzyl-D-glucopyranos
Autor:
Koki Matsubara, Teruaki Mukaiyama
Publikováno v:
Chemistry Letters. 22:581-584
In the presence of a catalytic amount of SnCl3(ClO4) or SiCl3(ClO4), O-(2-azido-2-deoxy-α-D-galactopyranosyl)-L-serine and -L-threonine are stereoselectively synthesized in excellent yields from 1-O-acetyl-2-azido-2-deoxy-3,4,6-tri-O-benzyl-D-galact
Publikováno v:
ChemInform. 23
1,2-trans-Ribofuranosides are stereoselectively synthesized in high yields directly from 1-hydroxy ribofuranose and trimethylsilylated nucleophiles by the use of diphenyltin sulfide and trifluoromethanesulfonic anhydride. Even further, in the coexist