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Fused pyridazine compounds
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Patent number 6,218,392
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Issue date Apr 17, 2001
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Eisai Co., Ltd.
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Nobuhisa Watanabe
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C07 - ORGANIC CHEMISTRY
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Fused pyridazine compounds
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Patent number 5,849,741
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Issue date Dec 15, 1998
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Eisai Co., Ltd.
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Nobuhisa Watanabe
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C07 - ORGANIC CHEMISTRY
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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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