Chemistry Heterocyclic Building Blocks Pyrimidines 5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine
Ambeed provide 7 derivatives of 5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine.
These compounds have the same murcko framework: 5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine.
Aromatic Substitution: If there are suitable electron-withdrawing or electron-donating groups on the pyrimidine ring, it can undergo electrophilic aromatic substitution reactions, such as nitration, sulfonation, or halogenation.
Nucleophilic Substitution: If there are electrophilic centers on the molecule, it can undergo nucleophilic substitution reactions with appropriate nucleophiles.
Reduction: Reduction reactions can be performed to reduce any unsaturated bonds within the molecule. For example, catalytic hydrogenation can be used to reduce double bonds.
Alkylation and Acylation: If there are suitable functional groups like amino or hydroxyl groups, they can undergo alkylation or acylation reactions, respectively.
Cyclization: Depending on the structure, it may be possible to intramolecularly cyclize the compound to form other heterocyclic rings or fused ring systems.
Oxidation: Oxidation reactions can be performed to introduce oxygen atoms into the molecule or to convert functional groups from lower oxidation states to higher ones.
Substitution at the Pyridine Nitrogen: If the pyridine nitrogen is accessible and there are appropriate leaving groups, substitution reactions at this position can occur.
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tert-Butyl 4-chloro-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxylate
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2-Chloro-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine hydrochloride
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2-(Methylthio)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine hydrochloride
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tert-Butyl 2-(methylthio)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxylate
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tert-Butyl 4-hydroxy-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxylate
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tert-Butyl 2,4-dichloro-6,8-dihydro-5H-pyrido[3,4-d]pyrimidine-7-carboxylate
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2,4-Dichloro-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine hydrochloride