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Featured researches published by Katsuhide Matoba.


Chemical & Pharmaceutical Bulletin | 1976

Studies on O-Alkylated Imides. II. Some Reactions of O-Ethyl Succinimide and O-Ethyl 4, 4-Dimethyl-glutarimide

Takao Yamazaki; Katsuhide Matoba; Suguki Imoto; Masanao Terashima


Chemical & Pharmaceutical Bulletin | 1979

Synthetic Studies of Azaflavonoids. II. Synthesis of 6-Azaflavonoids

Katsuhide Matoba; Akiko Fukushima; Hiroshi Arai; Takao Yamazaki


Journal of Heterocyclic Chemistry | 1975

Synthesis in the diazasteroid group. V. Synthesis of the 9,14-diazasteroid system†

Takao Yamazaki; Katsuhide Matoba; Masao Yajima; Masanori Nagata; Raymond N. Castle


Chemical & Pharmaceutical Bulletin | 1974

Reduction of O-Alkylated Imides

Katsuhide Matoba; Takao Yamazaki


Journal of Heterocyclic Chemistry | 1972

Synthesis in the diazasteroid group. I. A new synthesis of 8,13-diaza-2,3-dimethoxygona-1,3,5(10)triene and its mercuric acetate oxidation†

Katsuhide Matoba; Kazumasa Isomura; Masanori Nagata; Takao Yamazaki; Raymond N. Castle


Chemical & Pharmaceutical Bulletin | 1976

Reaction of vinylogous esters with grignard reagent.

Katsuhide Matoba; Takashi Maeda; Keiko Nagase; Takao Yamazaki


Journal of Heterocyclic Chemistry | 1977

Synthesis in the diazasteroid group VI. A synthesis of 2,3-dimethoxy-15-methyl-8,15-diazaestra-1,3,5(10)triene†

Takao Yamazaki; Masanori Nagata; Katsuhide Matoba; Hiroki Takahata; Raymond N. Castle


Chemical & Pharmaceutical Bulletin | 1975

Synthesis in the Diazasteroid Group. IV. A Synthesis of 2, 3-Dimethoxy-8, 14-diaza-15-oxo-gona-1, 3, 5 (10)-triene

Masanori Nagata; Sumiko Miyakoshi; Hiroshi Takezawa; Katsuhide Matoba; Takao Yamazaki


Journal of Heterocyclic Chemistry | 1974

Synthesis in the diazasteroid group. III . Syntheses of the 8,16- and 8,17-diazasteroid systems†

Takao Yamazaki; Katsuhide Matoba; Kazumasa Isomura; Masanori Nagata; Raymond N. Castle


Journal of Heterocyclic Chemistry | 1978

The reactions of ethyl 3,4-dihydro-4-quinazolylacetate and its derivatives with cyclopentanone. An attempt at the synthesis of the 6,8-diazasteroid system VII

Takao Yamazaki; Katsuhide Matoba; Atsuko Shirokawa; Raymond N. Castle

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