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Koshi Koseki

Yale University

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Publication

Featured researches published by Koshi Koseki.

ChemInform | 2002

Bioactive Marine Metabolites. Part 13. Kabiramide C, a Novel Antifungal Macrolide from Nudibranch Egg Masses.

Shigeki Matsunaga; Nobuhiro Fusetani; Kanehisa Hashimoto; Koshi Koseki; Masana Noma

The structure of the title compound (I) is elucidated by IR, UV and 1H- and 13C-NMR spectroscopy.

Journal of the American Chemical Society | 1986

Kabiramide C, a novel antifungal macrolide from nudibranch eggmasses

Shigeki Matsunaga; Nobuhiro Fusetani; Kanehisa Hashimoto; Koshi Koseki; Masana Noma

Journal of Organic Chemistry | 1988

Bioactive marine metabolites. 24. Isolation and structure elucidation of calyculins B, C, and D, novel antitumor metabolites, from the marine sponge Discodermia calyx

Yuko Kato; Nobuhiro Fusetani; Shigeki Matsunaga; Kanehisa Hashimoto; Koshi Koseki

Journal of Organic Chemistry | 1989

Further kabiramides and halichondramides, cytotoxic macrolides embracing trisoxazole, from the Hexabranchus egg masses

Shigeki Matsunaga; Nobuhiro Fusetani; Kanehisa Hashimoto; Koshi Koseki; Masana Noma; Hiroshi Noguchi; Ushio Sankawa

Journal of the American Chemical Society | 1992

Specificity, inhibition, and synthetic utility of a recombinant human α-1,3-fucosyltransferase

Chi-Huey Wong; David P. Dumas; Yoshitaka Ichikawa; Koshi Koseki; Samuel J. Danishefsky; Brent Weston; John B. Lowe

Journal of the American Chemical Society | 1992

Azaglycosylation of complex stannyl alkoxides with glycal-derived iodo sulfonamides: a straightforward synthesis of sialyl-Lewis X antigen and other oligosaccharide domains

Samuel J. Danishefsky; Koshi Koseki; David A. Griffith; Jacquelyn Gervay; John Peterson; Frank E. McDonald; Takeshi Oriyama

Journal of the American Chemical Society | 1992

Remarkable regioselectivity in the chemical glycosylation of glycal acceptors : a concise solution to the synthesis of sialyl-Lewis X glycal

Samuel J. Danishefsky; Jacquelyn Gervay; John Peterson; Frank E. McDonald; Koshi Koseki; Takeshi Oriyama; David A. Griffith; Chi-Huey Wong; David P. Dumas

Journal of Organic Chemistry | 1995

Efficient Chemical Synthesis of CMP-Neu5Ac and CMP-(Neu5Ac.alpha.2.fwdarw.8Neu5Ac)

Yasuhiro Kajihara; Takashi Ebata; Koshi Koseki; Hisashi Kodama; Hajime Matsushita; Hironobu Hashimoto

Archive | 1992

Process for producing 3-dpa-lactone

Katsuya Matsumoto; Takashi Ebata; Hiroshi Kawakami; Koshi Koseki; Hajime Matsushita

Archive | 1990

Method of preparing (S)-γ-hydroxymethyl-α, β-butenolide

Koshi Koseki; Takashi Ebata; Hiroshi Kawakami; Hajime Matsushita; Kazuo Itoh; Yoshitake Naoi

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Hajime Matsushita

Japan Tobacco

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Takashi Ebata

Japan Tobacco

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Hiroshi Kawakami

Japan Tobacco

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Katsuya Matsumoto

Japan Tobacco

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Kazuo Itoh

Japan Tobacco

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Yoshitake Naoi

Japan Tobacco

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Koji Okano

Japan Tobacco

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Kanehisa Hashimoto

Ibaraki University

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Nobuhiro Fusetani

Hokkaido University

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Shigeki Matsunaga

University of Tokyo

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