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Claims for Patent: 6,462,058

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Claims for Patent: 6,462,058

Title: Benzimidazole compound crystal
Abstract:A novel crystal of (R)-2-[[[3-methyl-4-(2, 2,2-trifluoroethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole or a salt thereof of the present invention is useful for an excellent antiulcer agent.
Inventor(s): Fujishima; Akira (Sanda, JP), Aoki; Isao (Kawanishi, JP), Kamiyama; Keiji (Ibaraki, JP)
Assignee: Takeda Chemical Industries, Ltd. (Osaka, JP)
Application Number:09/674,624
Patent Claims: 1. A crystal of (R)-2-(((3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl)methyl)sulfinyl)-1 H-benzimidazole wherein the X-ray powder diffraction analysis pattern has characteristic peaks at interplanar spacings (d) of 11.68, 6.77, 5.84, 5.73, 4.43, 4.09, 3.94, 3.89, 3.69, 3.41 and 3.11 Angstrom.

2. A crystal of (R)-2-(((3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl)methyl)sulfinyl)-1 H-benzimidazole 1.5 hydrate wherein the X-ray powder diffraction analysis pattern has characteristic peaks at interplanar spacings (d) of 13.22, 9.60, 8.87, 8.05, 6.61, 5.92, 5.65, 5.02, 4.49, 3.50 and 3.00 Angstrom.

3. A pharmaceutical composition which comprises the crystal according to claim 1 and a pharmaceutically acceptable excipient, carrier or diluent.

4. A pharmaceutical composition which comprises the crystal according to claim 2 and a pharmaceutically acceptable excipient, carrier or diluent.

5. A method for manufacturing a pharmaceutical composition for treating or preventing digestive ulcer comprising formulating the composition with the crystal of claim 1.

6. A method for treating or preventing digestive ulcer in a mammal in need thereof which comprises administering to said mammal an effective amount of the crystal according to claim 1 with a pharmaceutically acceptable excipient, carrier or diluent.

7. A method for manufacturing a pharmaceutical composition for treating or preventing digestive ulcer comprising formulating the composition with the crystal of claim 2.

8. A method for treating or preventing digestive ulcer in a mammal in need thereof which comprises administering to said mammal an effective amount of the crystal according to claim 2 with a pharmaceutically acceptable excipient, carrier or diluent.
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