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Dive into the research topics where Shinichiro Fujii is active.

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Featured researches published by Shinichiro Fujii.


Journal of The Chemical Society-perkin Transactions 1 | 1987

Studies on pyrrolizidines and related compounds. Part 9. Rearrangement of 7a-trichloromethyl-2,3,5,6,7,7a-hexahydro-1H-pyrrolizine and related compounds: an alternative route to 5-substituted 1-azabicyclo[3.3.1]nonanes

Seiji Miyano; Nobuko Mibu; Shinichiro Fujii; Fumiko Fujisaki; Nobuhiro Abe; Kunihiro Sumoto

Rearrangement of 7a-trichloromethyl-2,3,5,6,7,7a-hexahydro-1H-pyrrolizine and related compounds provides a new synthesis of 1-azabicyclo [3.3.1] nonanes.


Journal of The Chemical Society-perkin Transactions 1 | 1985

Studies on pyrrolizidines and related compounds. Part 8. A new route to perhydroazocines and related compounds using 1,2,3,5,6,7-hexahydropyrrolizinylium perchlorate

Seiji Miyano; Nobuko Mibu; Shinichiro Fujii; Nobuhiro Abe; Kunihiro Sumoto

A new method for the synthesis of 5-substituted perhydroazocines and related compounds is described. The method consists of the C(7a)–N(4) bond cleavage of quaternary ammonium salts of 7a-substituted hexahydropyrrolizines which are easily prepared from 1,2,3,5,6,7-hexahydropyrrolizinylium perchlorate.


Journal of Heterocyclic Chemistry | 1982

Synthesis of Δ1[9]- and/or Δ8[9]-dehydroindolizidines and related compounds †

Seiji Miyano; Shinichiro Fujii; Osamu Yamashita; Naoko Toraishi; Kunihiro Sumoto


Journal of Organic Chemistry | 1981

Convenient synthesis of 1-methylpyrrolizidines [(.+-.)-heliotridane and (.+-.)-pseudoheliotridane]

Seiji Miyano; Shinichiro Fujii; Osamu Yamashita; Naoko Toraishi; Kunihiro Sumoto; Fumio Satoh; Toru Masuda


Heterocycles | 1981

A New Route to 8-Substituted Pyrrolizidines

Seiji Miyano; Osamu Yamashita; Shinichiro Fujii; Takao Somehara; Kunihiro Sumoto; Fumio Satoh; Toru Masuda


ChemInform | 1981

CONVENIENT SYNTHESIS OF 1-METHYLPYRROLIZIDINES ((.+-.)-HELIOTRIDANE AND (.+-.)-PSEUDOHELIOTRIDANE)

Seiji Miyano; Shinichiro Fujii; Osamu Yamashita; Naoko Toraishi; Kunihiro Sumoto; Fumio Satoh; Toru Masuda


Heterocycles | 1983

Reaction of 1-methyl-#7B-Oe1(8)-dehydropyrrolizidine with dimethyl acetylenedicarboxylate

Seiji Miyano; Nobuko Mibu; Shinichiro Fujii; Osamu Yamashita; Hirokazu Annoura; Kunihiro Sumoto


ChemInform | 1981

STUDIES ON PYRROLIZIDINES AND RELATED COMPOUNDS. PART IV. A NEW ROUTE TO 8-SUBSTITUTED PYRROLIZIDINES

Seiji Miyano; Osamu Yamashita; Shinichiro Fujii; T. Somehara; Kunihiro Sumoto; Fumio Satoh; Toru Masuda


ChemInform | 1986

Studies on Pyrrolizidines and Related Compounds. Part 8. A New Route to Perhydroazocines and Related Compounds Using 1,2,3,5,6,7-Hexahydropyrrolizinylium Perchlorate.

Seiji Miyano; Nobuko Mibu; Shinichiro Fujii; Nobuhiro Abe; Kunihiro Sumoto


ChemInform | 1984

STUDIES ON PYRROLIZIDINES AND RELATED COMPOUNDS. PART VI. REACTION OF 1-METHYL-Δ1(8)-DEHYDROPYRROLIZIDINE WITH DIMETHYL ACETYLENEDICARBOXYLATE

Seiji Miyano; Nobuko Mibu; Shinichiro Fujii; Osamu Yamashita; H. Annoura; Kunihiro Sumoto

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Toru Masuda

Takeda Pharmaceutical Company

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