Keio University

Published papers

Ohba, Shigeru

161-180 items (total 188)

A chiral cyclohex-2-enone car- ring a hexofuranosyl substituent which directs highly stereoselec- tive 1,4-conjugate additions

Author
T.Murata, Y.Yanagisawa, M.Aoyama, H.Tsushima, K.Totani, S.Ohba & K.Tadano
Publication Title
Magazine name Tetrahedron: Asymmetry Start Page 4203-4217 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

2-Pyridinecarboxylic Acid

Author
H. Hamazaki, H. Hosomi, S. Takeda, H. Kataoka & S.Ohba
Publication Title
Magazine name Acta Crystallographica Start Page IUC9800049 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

Synthesis of the C17-C27 Fragment of Bryostatin 3

Author
T.Obitsu, K.Ohmori, Y.Ogawa, H.Hosomi, S.Ohba, S.Nishiyama & S.Yamamura
Publication Title
Magazine name Tetrahedron Letters Start Page 7349-7352 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

Synthetic Study on a 26-Membered Macrolide, Amphidinolide B: Synthesis of the C1-C13 Fragment

Author
K.Ohi, K.Shima, K.Hamada, Y.Saito, N.Yamada, S.Ohba & S.Nishiyama
Publication Title
Magazine name Bulletin of Chemical Society of Japan Start Page 2433-2440 (Publication Date)1998)
Authorship Category
Joint Work
Peer-review Status
Without

Stereoselective Chlorination of Steroidal 5,6-Olefin by an Electrochemical Method

Author
S.Maki, K.Konno, S.Ohba & H.Takayama
Publication Title
Magazine name Tetrahedron Letters Start Page 3541-3542 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

Copper(II) compound with long Cu(II)-phenolic oxygen atom bond- ing as galactose oxidase model

Author
S.Ito, S.Nishino, H.Itoh, S.Ohba & Y.Nishida
Publication Title
Magazine name Polyhedron Start Page 1637-1642 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

DNA degradation by the copper(II) complex with tripodal-ligands containing peptide group.

Author
T.Kobayashi, T.Okuno, T.Suzuki, M.Kunita, S.Ohba & Y.Nishida
Publication Title
Magazine name Polyhedron Start Page 1553-1559 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

Dimeric Copper(II) 4-Chlorophenoxyisobutyrate Adduct with Methanol and a Monomeric Copper(II) 4-Chlorophenoxyisobutyrate Adduct with Pyridine

Author
Y.Kani, S.Ohba, H.Matsushima & T.Tokii
Publication Title
Magazine name Acta Crystallographica Start Page 193-195 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

{2-[2-(Salicylideneaminomethyl) phenyliminomethyl]phenolato(2-)-N,N',O,O'}-copper(II)

Author
Y.Kani, S.Ohba, T.Ishikawa, M.Sakamoto & Y.Nishida
Publication Title
Magazine name Acta Crystallographica Start Page 191-193 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

Syntheses of Highly Oxygen- functionalized Derivatives of Di hydro- dihydroxy-phthalic Acid in Enantiomerically Enriched Forms.

Author
H.Ikeda, T.Sugai, H.Hosomi, S.Ohba & H.Ohta
Publication Title
Magazine name Bioscience, Biotechnology & Biochemistry Start Page 396-400 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

Ammonium and Isopropylammonium Salts of Fumaric Acid Dianion

Author
H.Hosomi, Y.Ito & S.Ohba
Publication Title
Magazine name Acta Crystallographica Start Page 142-145 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

trans-Bis(acetylacetonato)(3- methylpyridine)nitrocobalt(Ⅲ)

Author
H.Miyazaki, M.Tsuchimoto & S.Ohba
Publication Title
Magazine name Acta Crystallographica Start Page 46-47 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

Polyoxypeptin Isolated from Steptomyces:A Bioactive Cyclic Depsipeptide Containing the Novel Amino Acid 3-Hydroxy-3-methylprolin

Author
K.Umezawa, K.Nakazawa, T.Uemura, Y.Ikeda, S.Kondo, H.Nakagawa, N.Kinoshita, H.Hashizume, M.Hamada, T.Takeuchi & S.Ohba
Publication Title
Magazine name Tetrahedron Letters Start Page 1389-1392 (Publication Date)1998)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

endo-{6,6'-Diethoxy-2,2'-[R- propane-1,2-diylbis(nitrilomethylidene)]diphenolato-O,N,N',O'} oxovanadium(IV)

Author
G.Hoshina, M.Tsuchimoto & S.Ohba
Publication Title
Magazine name Acta Crystallographica Start Page 1812-1813 (Publication Date)1999)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

4-Methylbicyclo[6.3.0]undecane- 2,6-dione,(I), 7-bromo-4-methylbi cyclo[6.3.0]-undecane-2,6-dione, (II), 7-acetonyl-4-methyl- bicyclo [6.3.0]undecane-2,6-dione, (III), and 8-methyl- tricyclo[9.3.0.02,6] tetradec-5-ene- 4,10-dione, (IV)

Author
M.Umehara, H.Hosomi & S.Ohba
Publication Title
Magazine name Acta Crystallographica Start Page 1721-1725 (Publication Date)1999)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

[N,N'-Bis(5-methoxysalicylidene)-1,2-diphenyl-1,2-ethenediamine] oxovanadium(IV)

Author
G.Hoshina, S.Ohba & M.Tsuchimoto
Publication Title
Magazine name Acta Crystallographica Start Page 1451-1453 (Publication Date)1999)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

An asatone-type neolignan and its photocage product

Author
R.Yoshihara, K.Mori, S.Nishiyama, S.Yamamura, H.Hosomi, S.Ohba & Y.Ito
Publication Title
Magazine name Acta Crystallographica Start Page 1144-1147 (Publication Date)1999)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

exo-[(RS,SR)-N,N'-Bis(salicyli dene)-2,3-butanediamiso]oxo- vanadium(IV)

Author
G.Hoshina, M.Tsuchimoto & S.Ohba
Publication Title
Magazine name Acta Crystallographica Start Page 1082-1084 (Publication Date)1999)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

8-Methyltricyclo[9.3.0.03,7]tetra dec-3-ene-5,10-dione and 7,12- dihydroxy-9,12-dimethyltetracyclo[8.2.1.01,5.07,11]tridecan-13-one methanol solvate

Author
M.Umehara, H.Hosomi & S.Ohba
Publication Title
Magazine name Acta Crystallographica Start Page IUC9900068/1-2 (Publication Date)1999)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without

N-(Isopropyl)norbornane-endo- 2,3-di- carboximide

Author
R.Yoshihara, H.Hosomi, H.Aoyama & S.Ohba
Publication Title
Magazine name Acta Crystallographica Start Page 960-962 (Publication Date)1999)
Authorship Category
Joint Work
Publication Category
Research paper (scientific journal)
Peer-review Status
Without