Potential H1-Antihistaminic Drugs: Synthesis of 4-[(2,3-Dihydro-2-oxo-1H-benzimidazol-1-yl)alkoxycarbonyl]-1-(diphenylmethyl)piperazines by Selective Monoalkoxycarbonylation of α,ω-Dichloroalkanes by Phase-Transfer Catalysis

Abstract
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