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Dive into the research topics where Shosuke Yamamura is active.

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Featured researches published by Shosuke Yamamura.


Tetrahedron | 1968

The structures of daphniphylline and codaphniphylline

Hazime Irikawa; Noriyoshi Sakabe; Shosuke Yamamura; Yoshimasa Hirata

Abstract Isolation and structures of two alkaloids, daphniphylline and codaphniphylline, are presented. The structure of the former, established by X-ray analysis, is in full agreement with its chemical and spectral data. The structure of the latter was deduced by comparison of the NMR, IR and mass spectra of both compounds. Finally, chemical transformation of daphniphylline to codaphniphylline was carried out.


Tetrahedron Letters | 1967

Isolation of yuzurimines A and B from Daphniphyllum macropodum miquel

Hiroshi Sakurai; Hajime Irikawa; Shosuke Yamamura; Yoshimasa Hirata


Tetrahedron Letters | 1968

Isolation and structures of three new sesquiterpenes

Masanobu Iguchi; Atsuko Nishiyama; Hideyo Koyama; Shosuke Yamamura; Yoshimasa Hirata


Tetrahedron Letters | 1964

Structures of nobiline and dendrobine

Shosuke Yamamura; Yoshimasa Hirata


Tetrahedron Letters | 1969

Conversion of elemene-type sesquiterpenes into cadinene-type compounds and formation of ten-membered germacrone-type intermediates

Masanobu Iguchi; Atsuko Nishiyama; Shosuke Yamamura; Yoshimasa Hirata


Tetrahedron Letters | 1969

Isolation and structure of isocalamendiol

Masanobu Iguchi; Atsuko Nishiyama; Hideyo Koyama; Shosuke Yamamura; Yoshimasa Hirata


Tetrahedron Letters | 1969

Formation of methyl homodaphniphyllate, a plausible intermediate between daphniphylline and yuzurimine, and isolation of two new alkaloids

Hazime Irikawa; Masaaki Toda; Shosuke Yamamura; Yoshimasa Hirata


Tetrahedron Letters | 1967

Further studies of daphniphylline

Shosuke Yamamura; Hajime Irikawa; Yoshimasa Hirata


Tetrahedron Letters | 1967

The structure of codaphniphylline.

Hajime Irikawa; Shosuke Yamamura; Noriyoshi Sakabe; Yoshimasa Hirata


Tetrahedron Letters | 1970

Preisocalamendiol, a plausible precursor of isocalamendiol

Masanobu Iguchi; Atsuko Nishiyama; Shosuke Yamamura; Yoshimasa Hirata

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