Chemistry Heterocyclic Building Blocks Pyrans Pyrans ∩ Esters
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2-Methyl-4-oxo-4H-pyran-3-yl propionate
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Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate
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Dimethyl 3-(benzyloxy)-4-oxo-4H-pyran-2,5-dicarboxylate
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Ethyl 4-oxo-3-(propionyloxy)-4H-pyran-2-carboxylate