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US 7,321,035 B2 |
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Process for producing 2,6-dihalogenopurine |
Naruhito Masai, Osaka (Japan); Taketo Hayashi, Osaka (Japan); Hiroharu Kumazawa, Osaka (Japan); Junichi Nishikawa, Osaka (Japan); Istvan Barta, Paty (Hungary); and Takehiko Kawakami, Osaka (Japan) |
Assigned to Sumitomo Chemical Company, Limited, Osaka (Japan) |
Filed on Nov. 19, 2004, as Appl. No. 10/991,505. |
Application 10/991505 is a division of application No. 10/296234, granted, now 6,936,713, previously published as PCT/JP02/03325, filed on Apr. 03, 2002. |
Claims priority of application No. 2001-107004 (JP), filed on Apr. 05, 2001. |
Prior Publication US 2005/0090666 A1, Apr. 28, 2005 |
Int. Cl. C07D 473/40 (2006.01)
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