Process for the preparation of dihydroquinazolines

Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...

Reexamination Certificate

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Reexamination Certificate

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08084604

ABSTRACT:
The present invention relates to a process for the preparation of dihydroquinazolines, for example {8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazolin-4-yl}acetic acid, which are used as antiviral agents in the production of medicaments.

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