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1

ChemInform Abstract: A Novel Synthesis of C-Nucleosides Having Pyrrolo[1,2-f]pteridine, 6- and 8-Deazapyrrolo[1,2-f]pteridine Ring Systems from 6-Hydroxy-6-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-2H-pyran-3 (6H)-one.

Natsu Nishimura, Yoshitada Hasegawa, Souhei Mizuno, Misa Yuasa, Isamu Maeba

Journal:

Year:

1999

File:

PDF, 35 KB

1999

2

ChemInform Abstract: Nucleic Acid Related Compounds. Part 104. Synthesis of (S)-5-(4,5-Dihydroxypentyl)uracil from Pseudouridine and Clarification of Stereochemistry.

Isamu Maeba, Noriaki Morishita, Paula Francom, Morris J. Robins

Journal:

Year:

1999

File:

PDF, 28 KB

1999

3

ChemInform Abstract: Synthesis of a ′Direct-Linked′ C-Disaccharide from a Pyranulose Glycoside.

Misa Yuasa, Shigeyuki Kanazawa, Natsu Nishimura, Taeko Higuchi, Isamu Maeba

Journal:

Year:

1999

File:

PDF, 25 KB

1999

4

ChemInform Abstract: Synthesis of 5-Hydroxy-2-(β-D-ribofuranosyl)pyran-4-one from a Pyranulose Glycoside.

Shigeyuki Kanazawa, Souhei Mizuno, Rie Yamauchi, Natsu Nishimura, Isamu Maeba

Journal:

Year:

1999

File:

PDF, 35 KB

1999

5

ChemInform Abstract: Novel Ring Transformation of 5-(2,3,5-Tri-O-benzoyl-β-D-ribofuranosyl)isoxazole-4-carbaldehyde with 1,2-Diaminobenzenes to 3-Cyano-1,5-benzodiazepine C-Nucleosides.

Natsu Nishimura, Haruna Hisamitsu, Michiharu Sugiura, Isamu Maeba

Journal:

Year:

2001

File:

PDF, 35 KB

2001

6

ChemInform Abstract: Synthesis of Pyrrolo[2,1-f][1,2,4]triazine C-Nucleosides. Isosteres of Sangivamycin, Tubercidin, and Toyocamycin.

Natsu Nishimura, Ai Kato, Isamu Maeba

Journal:

Year:

2001

File:

PDF, 31 KB

2001

7

Novel Ring Transformation of Quinolines to Indole Derivatives in Two Steps.

Michiharu Sugiura, Natsuyo Yamaguchi, Takafumi Saya, Misato Ito, Koosuke Asai, Isamu Maeba

Journal:

Year:

2002

File:

PDF, 27 KB

2002

8

Novel Ring Transformation of Quinolines to Indole Derivatives in Two Steps via 1,4-Dihydroquinoline Derivatives.

Michiharu Sugiura, Natsuyo Yamaguchi, Koosuke Asai, Isamu Maeba

Journal:

Year:

2003

File:

PDF, 85 KB

2003

9

Synthesis of pyrido[2,3-d]pyrimidine (5-deazapteridine) C-nucleosides from a glycosyl enaminone

Isamu Maeba, Yasufumi Nishiyama, Masakazu Wakimura, Takayasu Tabata

Journal:

Carbohydrate Research

Year:

1996

Language:

english

File:

PDF, 366 KB

english, 1996

10

Novel ring transformation of 5-(2,3,5-tri-O-benzoyl-β-d-ribofuranosyl)isoxazole-4-carbaldehyde with 1,2-diaminobenzenes to 3-cyano-1,5-benzodiazepine C-nucleosides

Natsu Nishimura, Haruna Hisamitsu, Michiharu Sugiura, Isamu Maeba

Journal:

Carbohydrate Research

Year:

2000

Language:

english

File:

PDF, 111 KB

english, 2000

11

Diels-Alder adducts of glycosylfurans with maleimide. Application of x-ray diffraction and C.D. spectra to the determination of their stereochemistry

Isamu Maeba, Fumitaka Usami, Tomoyuki Ishikawa, Hiroshi Furukawa, Toshimasa Ishida, Masatoshi Inoue

Journal:

Carbohydrate Research

Year:

1985

Language:

english

File:

PDF, 706 KB

english, 1985

12

Synthesis of pyrrolo[2,1-f][1,2,4]triazine C-nucleosides. Isosteres of sangivamycin, tubercidin, and toyocamycin

Natsu Nishimura, Ai Kato, Isamu Maeba

Journal:

Carbohydrate Research

Year:

2001

Language:

english

File:

PDF, 111 KB

english, 2001

13

Synthesis of 3-β-d-ribofuranosyl-1 H-pyrazole-4-carboxamide

Yasufumi Nishiyama, Natsu Nishimura, Naoko Kuroyanagi, Isamu Maeba

Journal:

Carbohydrate Research

Year:

1997

Language:

english

File:

PDF, 461 KB

english, 1997

14

Synthesis of 3-β-d-ribofuranosylpyrazole-1-carboxamide

Natsu Nishimura, Masashi Banno, Ayumi Maki, Yasufumi Nishiyama, Isamu Maeba

Journal:

Carbohydrate Research

Year:

1998

Language:

english

File:

PDF, 142 KB

english, 1998

15

Synthesis of a ‘direct-linked’ C-disaccharide from a pyranulose glycoside

Misa Yuasa, Shigeyuki Kanazawa, Natsu Nishimura, Taeko Higuchi, Isamu Maeba

Journal:

Carbohydrate Research

Year:

1999

Language:

english

File:

PDF, 160 KB

english, 1999

16

Synthesis of 5-hydroxy-2-(β-d-ribofuranosyl)pyran-4-one from a pyranulose glycoside

Shigeyuki Kanazawa, Souhei Mizuno, Rie Yamauchi, Natsu Nishimura, Isamu Maeba

Journal:

Carbohydrate Research

Year:

1999

Language:

english

File:

PDF, 112 KB

english, 1999

17

Novel ring transformation of quinolines to indole derivatives in two steps

Michiharu Sugiura, Natsuyo Yamaguchi, Takafumi Saya, Misato Ito, Koosuke Asai, Isamu Maeba

Journal:

Tetrahedron Letters

Year:

2002

Language:

english

File:

PDF, 57 KB

english, 2002

18

Novel ring transformation of quinolines to indole derivatives in two steps via 1,4-dihydroquinoline derivatives

Michiharu Sugiura, Natsuyo Yamaguchi, Koosuke Asai, Isamu Maeba

Journal:

Tetrahedron Letters

Year:

2003

Language:

english

File:

PDF, 105 KB

english, 2003

19

Synthesis of 5-(β-d-ribofuranosyl)-1,2,3,4-tetrahydrophthalazine-1,4-diones

Isamu Maeba, Tomoyuki Ishikawa, Hiroshi Furukawa

Journal:

Carbohydrate Research

Year:

1985

Language:

english

File:

PDF, 272 KB

english, 1985

20

Identification of some benproperine metabolites in humans and investigation of their antitussive effect

Yan LI, Da-fang ZHONG, Si-wei CHEN, Isamu MAEBA

Journal:

Acta Pharmacologica Sinica

Year:

2005

Language:

english

File:

PDF, 582 KB

english, 2005

21

Condensed pyridazines. Part II. Synthesis of pyrido[2,3-C] pyridazines

Isamu Maeba, Raymond N. Castle

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 197 KB

1979

22

Condensed Pyridazines. Part I. Synthesis of 2-Oxo-2H-pyrano[2,3-D]-pyridazine and 2-Oxo-2H-pyrano[2,3-c] pyridazine

Isamu Maeba, Masahiko Ando, Shigetaka Yoshina The Late, Raymond N. Castle

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 210 KB

1979

23

Condensed pyridazines. Part III. Rearrangement and ring cyclization during the thermolysis of (z)-methyl 3-(6-azido-3-chloro-1-methyl-4-oxo-1,4-dihydropyridazin-5-yl)-2-methylacrylate

Isamu Maeba, Raymond N. Castle

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 223 KB

1979

24

Condensed pyridazines. Part IV. Reductive cyclization of (Z)-methyl 3-(6-azido-3-chloro-1-methyl-4-oxo-1,4-dihydropyridazin-5-yl)-2-rnethylacrylatc (I) to pyrido[2,3-c] pyridazines and the acid-catalysed cyclization of I to a pyrano[2,3-d] pyridazine

Isamu Maeba, Kazumi Mori, Raymond N. Castle

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 224 KB

1979

25

Cinnoline chemistry. XIV. 3-cyclohexylcinnolines

Isamu Maeba, Raymond N. Castle

Journal:

Journal of Heterocyclic Chemistry

Year:

1980

File:

PDF, 119 KB

1980

26

C-Nucleosides. 8. Synthesis of 5-hydroxy-2-(β-D-ribofuranosyl)pyridine

Isamu Maeba, Makoto Suzuki, Naoko Takahashi, Takashi Iijima, Hiroshi Furukawa

Journal:

Journal of Heterocyclic Chemistry

Year:

1988

File:

PDF, 332 KB

1988

27

C-nucleosides. 11. Synthesis of quinoxaline C-nucleosides through condensation of 1,2-diaminobenzenes with 6-hydroxy-6-(2,3,5-tri-O-benzoyl-?-D-ribofuranosyl)-2,6-dihydropyran-3-one

Maeba, Isamu, Kitaori, Kazuhiro, Itaya, Yoko, Ito, Chihiro

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1990

Language:

english

File:

PDF, 624 KB

english, 1990

28

C-Nucleosides. 2. Synthesis of 3-(.beta.-D-ribofuranosyl)phthalimide

Maeba, Isamu, Usami, Fumitaka, Furukawa, Hiroshi

Journal:

Journal of Organic Chemistry

Year:

1984

Language:

english

File:

PDF, 562 KB

english, 1984

29

C-Nucleosides. 1. Synthesis of 3-(.beta.-D-ribofuranosyl)pyridazines

Maeba, Isamu, Iwata, Katsumi, Usami, Fumitaka, Furukawa, Hiroshi

Journal:

Journal of Organic Chemistry

Year:

1983

Language:

english

File:

PDF, 1.18 MB

english, 1983

30

C-Nucleosides. 5. Synthesis of 5-hydroxy-5-(.beta.-D-ribofuranosyl)-3-pyrrolin-2-one from glycosylfuran

Maeba, Isamu, Hara, Osamu, Suzuki, Makoto, Furukawa, Hiroshi

Journal:

Journal of Organic Chemistry

Year:

1987

Language:

english

File:

PDF, 701 KB

english, 1987

31

C-Nucleosides. 6. Synthesis of 5-methoxy-5-(2,3,5-tri-O-benzoyl-.beta.-D-ribofuranosyl)furan-2(5H)-one and its ring transformation

Maeba, Isamu, Suzuki, Makoto, Hara, Osamu, Takeuchi, Tomohiko, Iijimar, Takashi, Furukawa, Hiroshi

Journal:

Journal of Organic Chemistry

Year:

1987

Language:

english

File:

PDF, 789 KB

english, 1987

32

Synthesis of ( S )-5-(4,5-Dihydroxypentyl)uracil from Pseudouridine and Clarification of Stereochemistry 1

Maeba, Isamu, Morishita, Noriaki, Francom, Paula, Robins, Morris J.

Journal:

Journal of Organic Chemistry

Year:

1998

Language:

english

File:

PDF, 43 KB

english, 1998

33

C-nucleosides. 7. Preparation and utility of 6-hydroxy-6-(2,3,5-tri-O-benzoyl-.beta.-D-ribofuranosyl)-2H-pyran-3(6H)-one as a key intermediate of C-nucleoside synthesis

Maeba, Isamu, Takeuchi, Tomohiko, Iijima, Takashi, Furukawa, Hiroshi

Journal:

Journal of Organic Chemistry

Year:

1988

Language:

english

File:

PDF, 665 KB

english, 1988

34

C-nucleosides. 10. Synthesis of 1,3-dimethyl-7-(.beta.-D-ribofuranosyl)lumazine

Maeba, Isamu, Kitaori, Kazuhiro, Ito, Chihiro

Journal:

Journal of Organic Chemistry

Year:

1989

Language:

english

File:

PDF, 463 KB

english, 1989

35

C-nucleosides. Part 14. Synthesis of (6S)- and (6R)-6-methoxy-6-(?-D-ribofuranosyl) pyran-3(2H,6H)-one. Potential chiral synthons, and 6-(?-D-ribofuranosyl)pyridazine-3-carboxamide, a 2-azanicotinamide C-nucleoside, from 6-hydroxy-6-(2,3,5-tri-O-benzoyl-?-D-ribofuranosyl)pyran-3(2H,6H)-one

Maeba, Isamu, Osaka, Kazuya, Morishita, Noriaki, Fujioka, Kengo, Ito, Chihiro

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1991

Language:

english

File:

PDF, 811 KB

english, 1991

36

C-Nucleosides. Part 13. Synthesis of 5-nitro-2-(?-D-ribofuranosyl)furan

Maeba, Isamu, Osaka, Kazuya, Ito, Chihiro

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1990

Language:

english

File:

PDF, 424 KB

english, 1990

37

C-nucleosides. Part 18. Stereoselective annulation of 6-acetoxy-6-(2,3,5-tri-O-benzoyl-?-D-ribofuranosyl)pyran-3(2H,6H)-one with ethylene glycol to pyrano-[2,3-b]-1,4-dioxine glycosides

Morishita, Noriaki, Honmi, Shiho, Ito, Chihiro, Maeba, Isamu

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1992

Language:

english

File:

PDF, 549 KB

english, 1992

38

C-nucleosides. 12. Synthesis of 2?-deoxy pyridazinone C-nucleoside from 2-(2,3,5-tri-O-benzoyl-?-D-ribofuranosyl)furan

Maeba, Isamu, Iijima, Takashi, Matsuda, Yoko, Ito, Chihiro

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1990

Language:

english

File:

PDF, 436 KB

english, 1990

39

C-nucleosides. Part 9. Synthesis of carbazole and pyrrole C-nucleosides from 2-(2,3,5-tri-O-benzoyl-?-D-ribofuranosyl)furan

Maeba, Isamu, Takeuchi, Tomohiko, Iijima, Takashi, Kitaori, Kazuhiro, Muramatsu, Hiroko

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1989

Language:

english

File:

PDF, 697 KB

english, 1989

40

Fluorous Thiazolium Salts for the Intramolecular Stetter Reaction

Hara, Osamu, Kume, Atsuko, Sugiura, Michiharu, Maeba, Isamu

Journal:

Year:

2008

Language:

english

File:

PDF, 386 KB

english, 2008

41

Synthesis of 2-Imino-3-[1-(b-D-ribofuranosyl)oxo]-1H,5H-1,5-benzodiazepine through Condensation of o-Phenylenediamine with Formylisoxazole Glycoside

Maeba, Isamu, Nishimura, Natsu, Koyano, Yuko, Sugiura, Michiharu

Journal:

Year:

1999

Language:

english

File:

PDF, 163 KB

english, 1999

42

Studies on Heterocyclic Compounds. X. Synthesis of Furo [2, 3-d] pyridazine Derivatives. (1)

YOSHINA, SHIGETAKA, MAEBA, ISAMU, HIRANO, KOICHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1969

File:

PDF, 624 KB

1969

43

Studies on Heterocyclic Compounds. XV. Synthesis of Furo [2, 3-d] pyridazine Derivatives.(4). Synthesis of 2-[2-(5-Nitro-2-furyl) vinyl]-4, 7-dichlorofuro-[2, 3-d] pyridazine and Related Compounds by the Wittig Reaction

YOSHINA, SHIGETAKA, MAEBA, ISAMU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1971

Language:

english

File:

PDF, 609 KB

english, 1971

44

Studies on Heterocyclic Compounds. XVIII. Synthesis of Furo [2, 3-d] pyridazine Derivatives. (6). Nitration of 4-Oxo-7-chloro-4, 5-dihydrofuro [2, 3-d] pyridazine

YOSHINA, SHIGETAKA, MAEBA, ISAMU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1972

File:

PDF, 518 KB

1972

45

Studies on Heterocyclic Compounds. XVI. Synthesis of Furo [2, 3-d] pyridazine Derivatives.(5). Synthesis of 4, 7-Dichlorofuro [2, 3-d] pyridazine-2-carboxaldehyde and some of Its Derivatives

YOSHINA, SHIGETAKA, MAEBA, ISAMU, LAOHATHAI, VALLAPHA

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1972

Language:

english

File:

PDF, 769 KB

english, 1972

46

Studies on Heterocyclic Compounds. XII. Synthesis of Furo [2, 3-d]-pyridazine Derivatives. (3). Synthesis of 2-Methyl-8-chloro-6-substituted-sym-triazolo [2, 1-f] furo [2, 3-d]-pyridazine Derivatives

YOSHINA, SHIGETAKA, MAEBA, ISAMU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1970

File:

PDF, 522 KB

1970

47

Studies on Heterocyclic Compounds. XI. Synthesis of Furo [2, 3-d] pyridazine Derivatives. (2). Carbonyl Bridge Compound of 2-Methyl-4, 7-dichlorofuro [2, 3-d] pyridazine

YOSHINA, SHIGETAKA, MAEBA, ISAMU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1970

File:

PDF, 363 KB

1970

48

Studies on Heterocyclic Compounds. XIX. Synthesis of Furo [2, 3-d]-pyridazine Derivatives.(7). Nitration of Furo [2, 3-d] pyridazines in the 5 Position

YOSHINA, SHIGETAKA, MAEBA, ISAMU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1973

Language:

english

File:

PDF, 420 KB

english, 1973

49

Studies on Heterocyclic Compounds. XXI. Synthesis of Furo [2, 3-d] pyridazine Derivatives. (8). Synthesis of 4-Oxo-5, 7-disubstituted-4, 5-dihydrofuro [2, 3-d] pyridazines and Its Nitration

MAEBA, ISAMU, VALLAPHA, LAOHATHAI, YOSHINA, SHIGETAKA

Journal:

YAKUGAKU ZASSHI

Year:

1974

File:

PDF, 798 KB

1974

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