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Alternative forms of the phosphodiesterase-4 inhibitor N-cyclopropyl-1-{3-[(1-oxidopryidin-3-yl)ethynyl]phenyl}-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxyamide

US Patent 8552193 · Granted Oct 8, 2013

Estimated economic value: $45,159,000

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