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Substituted 8′-pyridinyl-dihydrospiro-[cycloalkyl]-pyrimido[1,2-a] pyrimidin-6-one and 8′-pyrimidinyl-dihydrospiro-[cycloalkyl]-pyrimido[1,2-a] pyrimidin-6-one derivatives

US Patent 7507743 · Granted Mar 24, 2009

Estimated economic value: $23,117,000

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