The present invention relates to 3,4-dihydroquinazoline derivatives as T-type calcium channel blockers and a method of preparing the same. The present invention further relates to a composition comprising the same. The composition comprising the 3,4-dihydroquinazoline derivatives of the present invention can be effectively used for preventing and treating angina pectoris, high blood pressure, myocardial disease, pain and epilepsy by blocking the T-type calcium channel.

 
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> Substituted benzimidazoles and imidazo-[4,5]-pyridines

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