Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Takashi Ineyama"'
Autor:
Takashi Ineyama, Mai Kuratsu, Ryotaro Nakaya, Hiroshi Ueda, Akihiro Matsui, Shinya Furukawa, Ilhyong Ryu, Takahide Fukuyama
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 21(34)
A general method for the synthesis of dipeptides has been developed, which does not require any coupling reagents. This method is based on the reaction of readily available HCl salts of amino acid methyl esters with tetrabutylphosphonium amino acid i
Publikováno v:
Nucleosides and Nucleotides. 15:47-58
A practical synthetic method of d4T (3) from 5-methyluridine (2a) was developed. The Marumoto-Mansuri method was modified using 2′,3′-O-methoxy-ethylidene-5-methyluridine (10) as an intermediate to afford 1-(3,5-di-O-acetyl-2-bromo-2-deoxy-β-D-r
Autor:
Hiroshi Shiragami, Takashi Ineyama, Yumiko Uchida, Kunisuke Izawa, Satoshi Takamatsu, Yasuhiro Tanaka, Yoshihito Koguchi
Publikováno v:
Nucleosides, Nucleotides and Nucleic Acids. 14:337-340
A convenient synthesis of 9-(2-hydroxyethoxymethyl)guanine (acyclovir) from guanosine by chemical transpurination was developed. The isomerization of the 7-isomer to the desired 9-isomer and the purification of the 9-isomer was achieved simply by con
Publikováno v:
ChemInform. 22
Autor:
Satoshi Takamatsu, Hiroshi Shiragami, Yumiko Uchida, Yoshihito Koguchi, Takashi Ineyama, Yasuhiro Tanaka, Kunisuke Izawa
Publikováno v:
ChemInform. 26
A convenient synthesis of 9-(2-hydroxyethoxymethyl)guanine (acyclovir) from guanosine by chemical transpurination was developed. The isomerization of the 7-isomer to the desired 9-isomer and the purification of the 9-isomer was achieved simply by con
Publikováno v:
Carbohydrate Research. 205:415-421
Autor:
Satoshi Takamatsu, Satoshi Katayama, Masaki Naito, Takashi Ineyama, Shigehisa Tanji, Kunisuke Izawa
Publikováno v:
ChemInform. 37
A facile method for the synthesis of 3′-α-fluoro-2′,3′-dideoxyadenosine 6 has been developed. Fluorination of 5′- O -acetyl-3′-β-bromo-3′-deoxyadenosine 3 with MOST gave 2′-β-bromo-3′-α-fluoro-2′,3′-dideoxyadenosine 4 via a re
Autor:
Takashi Ineyama, Satoshi Takamatsu, Satoshi Katayama, Masaki Naito, Keizo Yamashita, Kunisuke Izawa
Publikováno v:
Nucleosides, nucleotidesnucleic acids. 22(5-8)
A facile method for the synthesis of 3'-alpha-fluoro-2',3'-dideoxyadenosine (5) has been developed using a novel rearrangement of 3'-beta-bromine to the 2'-beta position during 3'-alpha fluorination.
Autor:
Hiroyuki Izawa, Tomohisa Ohta, Sojiro Shiokawa, Takashi Ineyama, Sakurai Kuniya, Shigeo Nozoe, Kunisuke Izawa, Nobuaki Sato, Eiichiro Iwashita
Publikováno v:
HETEROCYCLES. 33:143
Title carbapenem (1) having thienamycin-type of side chain at C-6 was synthesized from L-glutamic acid. Chirospecific oxymercuration of 6-vinylcarbapenam (12a) successfully induced 8R-hydroxyl
Publikováno v:
NIPPON KAGAKU KAISHI. :1995-2000