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1

Facile Synthesis of Unesterified Enolphosphates

Hata, Tsujiaki, Yamada, Kohji, Futatsugi, Tetsuaki, Sekine, Mitsuo

Journal:

Year:

1979

File:

PDF, 213 KB

1979

2

ChemInform Abstract: Chemical Synthesis of Oligonucleotides by Use of Phenylthio Group

Mitsuo Sekine, Tsujiaki Hata

Journal:

Year:

1999

File:

PDF, 24 KB

1999

3

Zur Chemie der energiereichen Phosphate, XIX. Phosphorylierung mit der Additionsverbindung aus Bromcyanacetamid und Triphenylphosphin

Friedrich Cramer, Tsujiaki Hata

Journal:

European Journal of Organic Chemistry

Year:

1966

Language:

german

File:

PDF, 202 KB

german, 1966

4

Synthesis of oligoribonucleotides by use of S,S-diphenyl n-monomethoxytrityl ribonucleoside 3'-phosphorodithioates

Shinkichi Honda, Ken-ichi Urakami, Kohji Koura, Kazunori Terada, Yoshinobu Sato, Kyoko Kohno, Mitsuo Sekine, Tsujiaki Hata

Journal:

Year:

1984

Language:

english

File:

PDF, 852 KB

english, 1984

5

New guanosine derivatives: facile O6-phosphorylation, thiophosphinylation sulfonylation and silylation of guanosine derivatives by 4-dimethylaminopyridine catalized reaction

Hristo Petrov Daskalov, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1980

Language:

english

File:

PDF, 299 KB

english, 1980

6

A new method for the synthesis of capped oligoribonucleotides by use of an appropriately protected 7-methylguanosine diphosphate derivative as a donor for the triphosphate bond formation

Reiko Iwase, Mitsuo Sekine∗, Tsujiaki Hata∗, Kin-ichiro Miura

Journal:

Tetrahedron Letters

Year:

1988

Language:

english

File:

PDF, 314 KB

english, 1988

7

A convenient method for the synthesis of deoxyribonucleoside 3′-hydrogenphosphonates

Mitsuo Sekine, Sin-ichiro Narui, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1988

Language:

english

File:

PDF, 262 KB

english, 1988

8

A Raman spectroscopic analysis of the sequence-dependent structures of oligo-DNA duplexes: d(CGCG)2, d(GCGC)2, d(GGCC)2, and d(CCGG)2 in aqueous solution

Chikako Torigoe, Yoshifumi Nishimura, Masamichi Tsuboi, Jun-ichi Matsuzaki, Hitoshi Hotoda, Mitsuo Sekine, Tsujiaki Hata

Journal:

Spectrochimica Acta Part A: Molecular Spectroscopy

Year:

1986

Language:

english

File:

PDF, 641 KB

english, 1986

9

Solid-phase synthesis of peptides containing O-phosphoryl serine and O-phosphoryl threonine using allyl group for phosphate protection

Yoshihito Ueno, Fuminori Suda, Yoichi Taya, Ryoji Noyori, Yoshiro Hayakawa, Tsujiaki Hata

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

1995

Language:

english

File:

PDF, 208 KB

english, 1995

10

A facile synthesis of 2-azidoadenosine derivatives from guanosine as photoaffinity probes

Seiichiro Higashiya, Chitose Kaibara, Koichiro Fukuoka, Fuminori Suda, Masahide Ishikawa, Masasuke Yoshida, Tsujiaki Hata

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

1996

Language:

english

File:

PDF, 245 KB

english, 1996

11

Acylphosphonates : A new method for Stereospecific and Stereoselective Generation of Dideoxyribonucleoside Phosphorothioates via the Acylphosphonate Intermediates

Mitsuo Fujii, Kouji Ozaki, Mitsuo Sekine, Tsujiaki Hata

Journal:

Year:

1987

Language:

english

File:

PDF, 779 KB

english, 1987

12

Nucleoside 3′-N,N-Dialkylphosphonamidates as novel nucleotide units for the solution-phase oligonucleotide synthesis

Takeshi Wada, Kazushige Ishikawa, Tsujiaki Hata

Journal:

Year:

1993

Language:

english

File:

PDF, 825 KB

english, 1993

13

Synthesis of cytidyl(3'-5')adenosine bearing 2'(3')-O-leucyl ester via a phosphorothioate triester intermediate

Hitoshi Hotoda, Ryuichi Saito, Mitsuo Sekine, Tsujiaki Hata

Journal:

Year:

1990

Language:

english

File:

PDF, 733 KB

english, 1990

14

Self-complementary tetradeoxyribonucleoside triphosphates convenient chemical preparation and spectroscopic studies in solution

Jun-ichi Matsuzaki, Hitoshi Hotoda, Mitsuo Sekine, Tsujiaki Hata, Shigesada Higuchi, Yoshifumi Nishimura, Masamichi Tsuboi

Journal:

Year:

1986

Language:

english

File:

PDF, 1.11 MB

english, 1986

15

Further development of oligoribonucleotide:bis(tributyltin)oxide as a reagent for removal of the internucleotidic phenylthio group via the phosphotriester approach

Hiroshi Tanimura, Mitsuo Sekine, Tsujiaki Hata

Journal:

Year:

1986

Language:

english

File:

PDF, 586 KB

english, 1986

16

Introduction of the 4,4′4′-tris(benzoyloxy)trityl group into the exo amino groups of deoxyribonucleosides and its properties

Mitsuo Sekine, Narihiro Masuda, Tsujiaki Hata

Journal:

Year:

1985

Language:

english

File:

PDF, 757 KB

english, 1985

17

Oligodeoxyribonucleotide synthesis by use of S,S-diphenyl deoxyribonucleoside 3'-phosphorodithioates and bifunctional condensing reagents in the phosphotriester approach

Mitsuo Sekine, Jun-Ichi Matsuzaki, Tsujiaki hata

Journal:

Year:

1985

Language:

english

File:

PDF, 949 KB

english, 1985

18

A general and convenient method for the synthesis of unesterified carbamoyl- and thiocarbamoyl-phosphonic acids

Mitsuo Sekine, Hikaru Yamagata, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1979

Language:

english

File:

PDF, 251 KB

english, 1979

19

A simple protecting group protection-purification “handle” for polynucleotide synthesis. IV. Synthesis of deoxyribotrinucleotides.

Tsujiaki Hata, Iwao Nakagawa, Yoshiki Nakada

Journal:

Tetrahedron Letters

Year:

1975

Language:

english

File:

PDF, 165 KB

english, 1975

20

A convenient method for the synthesis of 5′-S-alkylthio-5′-deoxyribonucleosides

Iwao Nakagawa, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1975

Language:

english

File:

PDF, 189 KB

english, 1975

21

Phehylthio group as a protecting group of phosphates in oligonucleotide synthesis via phosphotriester approach

Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1975

Language:

english

File:

PDF, 223 KB

english, 1975

22

Chemical synthesis of cytidine-5′-monophosphono-N-acetylneuraminic acid (CMP-neu5ac)

Shingo Makino, Yoshihito Ueno, Masahide Ishikawa, Yoshihiro Hayakawa, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 214 KB

english, 1993

23

One-pot reaction for the synthesis of m7G5′pppG and m7G5′pppA by using an activatable bifunctional phosphorylating reagent

Koichiro Fukuoka, Fuminori Suda, Ryo Suzuki, Hiroshi Takaku, Masahide Ishikawa, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1994

Language:

english

File:

PDF, 258 KB

english, 1994

24

The practical synthesis of RNA fragments in the solid phase approach

Hiroshi Tanimura, Tetsuya Fukazawa, Mitsuo Sekine, Tsujiaki Hata, J.William Efcavitch, Gerald Zon

Journal:

Tetrahedron Letters

Year:

1988

Language:

english

File:

PDF, 146 KB

english, 1988

25

2-cyanoethyl nucleoside 3′-phosphonates as a novel starting materials for oligonucleotide synthesis

Takeshi Wada, Hitoshi Hotoda, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1988

Language:

english

File:

PDF, 213 KB

english, 1988

26

Acylphosphonates. 5. 1A new method for stereospecific generation of phosphorothioate via aroylphosphonate intermediate

Mitsuo Fujii, Kouji Ozaki, Akiko Kume, Mitsuo Sekine, TsujiaKi Hata

Journal:

Tetrahedron Letters

Year:

1986

Language:

english

File:

PDF, 205 KB

english, 1986

27

Acylphosphonates. 6. Reaction mechanism of Zn/Me3SiCl mediated conversion of 2,2,2-trichloroethoxycarbonylphosphonates to silyl phosphites

Mitsuo Fujii, Kouji Ozaki, Akiko Kume, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1986

Language:

english

File:

PDF, 235 KB

english, 1986

28

An effective method for the preparation of O6 -substituted guanosine and n3-substituted uridine derivatives via the corresponding stannylated intermediates

Hiroshi Tanimura, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1986

Language:

english

File:

PDF, 228 KB

english, 1986

29

Bis (2,4,6-trihalophenoxy) trichlorophosphoranes: Novel condensing reagents for internucleotidic phosphotriester bond formation via active phosphorochloridate intermediates

Jun-ichi Matsuzaki, Hitoshi Hotoda, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1986

Language:

english

File:

PDF, 180 KB

english, 1986

30

Phthaloyl group : a new amino protecting group of deoxyadenosine in oligonucleotide synthesis

Akiko Kume, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1982

Language:

english

File:

PDF, 265 KB

english, 1982

31

A new type of protection mode for the Guanine residue by using 1,2-diisobutyryloxyethylene group

Mitsuo Sekine, Jun-ichi Matsuzaki, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1982

Language:

english

File:

PDF, 288 KB

english, 1982

32

Diphenylcarbamoyl and propionyl groups: a new combination of protecting groups for the guanine residue

Takashi Kamimura, Masahiko Tsuchiya, Kohji Koura, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1983

Language:

english

File:

PDF, 259 KB

english, 1983

33

A facile conversion of dialkyl phosphonates to dialkyl phosphorodithioates

Takeshi Wada, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 140 KB

english, 1990

34

Synthesis and Properties of Thymidine Derivatives Bearing the (PhS)2P(O) and (PhS) (PhNH)P(O) groups

Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1983

Language:

english

File:

PDF, 255 KB

english, 1983

35

Tris(2,4,6-tribromophenoxy) dichlorophosphorane: A novel condensing agent for rapid internucleotidic bond formation in the phosphotriester approach

Hitoshi Hotoda, Takeshi Wada, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 235 KB

english, 1987

36

The phosphorothioite method 2. Use of S-(t-butyl) β-cyanoethyl phosphorothioites of deoxyribonucleoside for the synthesis of oligodeoxyribonucleosides on polymer supports

Mitsuo Fujii, Hajime Nagai, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 246 KB

english, 1987

37

(Butylthio)carbonyl Group: A New Protecting Group for the Guanine Residue in Oligoribonucleotide Synthesis

Masayo Fujii, Shunichi Yamakage, Hiroshi Takaku, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 281 KB

english, 1987

38

A new method for the synthesis of branched oligoribonucleotides using a fully protected branched triribonucleoside diphosphate unit

Mitsuo Sekine, Jarmo Heikkila, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 266 KB

english, 1987

39

Nucleoside 3′-N,N-dialkylphosphonamidates: novel building blocks for oligonucleotide synthesis

Takeshi Wada, Kazushige Ishikawa, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 254 KB

english, 1990

40

An effective method for removal of the internucleotidic phenylthio group from fully protected oligonucleotides by use of bis(tributyltin) oxide

Mitsuo Sekine, Hiroshi Tanimura, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1985

Language:

english

File:

PDF, 246 KB

english, 1985

41

An effective method for the synthesis of the cap structure of eukaryotic messenger ribonucleic acids

Takashi Kamimura, Yumi Osaki, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 259 KB

english, 1984

42

Structural assignment of n3-acylated uridine derivatives by means of 13c nmr spectroscopy

Takashi Kamimura, Tsukio Masegi, Mitsuo Sekine, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 214 KB

english, 1984

43

Phosphotriester approach to oligothymidylate synthesis utilizing a simple thymidine unit and a new type of condensing agents

Mitsuo Sekine, Jun-ichi Matsuzaki, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1981

Language:

english

File:

PDF, 247 KB

english, 1981

44

Dialkyl acylphosphonates: a new acylating agent of alcohols

Mitsuo Sekine, Akiko Kume, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1981

Language:

english

File:

PDF, 256 KB

english, 1981

45

A new method for the synthesis of dinucleotides

Tsujiaki Hata, Iwao Nakagawa, Noriyori Takebayashi

Journal:

Tetrahedron Letters

Year:

1972

Language:

english

File:

PDF, 166 KB

english, 1972

46

A convenient method of ketone synthesis utilizing the reaction of diethyl trimethylsilyl phosphite with carbonyl compounds

Tsujiaki Hata, Akio Hashizume, Masashi Nakajima, Mitsuo Sekine

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 235 KB

english, 1978

47

A convenient synthesis of phosphoenolpyruvate via silyl-ester intermediate

Mitsuo Sekine, Tetsuaki Futatsugi, Kohji Yamada, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1980

Language:

english

File:

PDF, 156 KB

english, 1980

48

New type of chemical oxidative phosphorylation: activation of phosphonate function by use of triisopropylbenzenesulfonyl chloride

Mitsuo Sekine, Hiroyuki Mori, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1979

Language:

english

File:

PDF, 239 KB

english, 1979

49

Facile synthesis of β-alkyl-substituted esters from α,β-unsaturated aldehydes

Tsujiaki Hata, Masashi Nakajima, Mitsuo Sekine

Journal:

Tetrahedron Letters

Year:

1979

Language:

english

File:

PDF, 210 KB

english, 1979

50

Studies on alkylation of acyl anion equivalents: unsymmetrical ketone synthesis by use of diethyl 1-trimethylsilyloxy-alkylphosphonates

Mitsuo Sekine, Masashi Nakajima, Akiko Kume, Tsujiaki Hata

Journal:

Tetrahedron Letters

Year:

1979

Language:

english

File:

PDF, 256 KB

english, 1979