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| Figure 4 Annular tautomerism in 4,4-dimethyl-3,4-dihydropyrido[2′,3′:3,4]pyrazolo[1,5-a][1,3,5]triazin-2-amine. |
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| Figure 4 Annular tautomerism in 4,4-dimethyl-3,4-dihydropyrido[2′,3′:3,4]pyrazolo[1,5-a][1,3,5]triazin-2-amine. |
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