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Amino acid derivative
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Patent number 5,679,671
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Issue date Oct 21, 1997
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Eisai Co., Ltd.
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Hitoshi Oinuma
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Benzothiazole derivative
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Patent number 4,929,623
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Issue date May 29, 1990
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Eisai Co., Ltd.
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Shinya Abe
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C07 - ORGANIC CHEMISTRY
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Polyprenyl Compounds
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Patent number 4,883,916
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Issue date Nov 28, 1989
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Eisai Co., Ltd.
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Kouji Nakamoto
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C07 - ORGANIC CHEMISTRY
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Polyprenyl compounds
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Patent number 4,788,330
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Issue date Nov 29, 1988
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Eisai Co., Ltd.
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Kouji Nakamoto
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C07 - ORGANIC CHEMISTRY