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Quinine derivatines
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Patent number 4,818,441
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Issue date Apr 4, 1989
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Takeda Chemical Industries, Ltd.
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Isuke Imada
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C07 - ORGANIC CHEMISTRY
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Benzoquinone derivatives
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Patent number 4,808,339
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Issue date Feb 28, 1989
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Takeda Chemical Industries, Ltd.
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Shinji Terao
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C07 - ORGANIC CHEMISTRY
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Quinone derivatives and use
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Patent number 4,533,554
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Issue date Aug 6, 1985
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Takeda Chemical Industries, Ltd.
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Shinji Terao
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C07 - ORGANIC CHEMISTRY
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-
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Antiallergic agent
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Patent number 4,358,461
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Issue date Nov 9, 1982
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Takeda Chemical Industries, Ltd.
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Yoshitaka Maki
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE