Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Reexamination Certificate
2007-06-19
2007-06-19
Balasubramanian, Venkataraman (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
Reexamination Certificate
active
10499361
ABSTRACT:
A process for preparing quinazolin-4-one or its derivative by reacting anthranilic acid or its derivative with formic acid or its derivative in the presence of ammonia, or by reacting ammonium anthranilate or its derivative with formic acid or its derivative.
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Harada Takashi
Hirotsu Kenji
Nishino Shigeyoshi
Oda Hiroyuki
Shima Hidetaka
Balasubramanian Venkataraman
Costellia Jeffrey L.
Nixon & Peabody LLP
Ube Industries Ltd.
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