CAS 110963-63-8

1-(2-ethoxyethyl)-2-(piperidin-4-yl)-1H-benzo[d]imidazole

Codes：BALI-011

Application context (from source-drug indications)

荨麻疹比拉斯汀过敏性鼻炎比拉斯汀皮炎比拉斯汀瘙痒症比拉斯汀湿疹比拉斯汀变应性结膜炎比拉斯汀

Source drugs (routes using this intermediate)

Drug	Tier	Expiry
比拉斯汀Bilastine	Tier C — Watch / trade	-

Position in synthesis routes (up/downstream chain)

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比拉斯汀优化路线steps: 8total yield: 1.84 g

benzene-1,2-diamine→piperidine-4-carboxylic acid→2-(piperidin-4-yl)-1H-benzo[d]imidazole→tert-butyl 4-(1H-benzo[d]imidazol-2-yl)piperidine-1-carboxylate→2-ethoxyethyl methanesulfonate→tert-butyl 4-(1-(2-ethoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidine-1-carboxylate→1-(2-ethoxyethyl)-2-(piperidin-4-yl)-1H-benzo[d]imidazole→ethyl 2-methyl-2-(4-(2-((methylsulfonyl)oxy)ethyl)phenyl)propanoate→ethyl 2-(4-(2-(4-(1-(2-ethoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoate→2-(4-bromophenyl)ethan-1-ol→((1-ethoxy-2-methylprop-1-en-1-yl)oxy)trimethylsilane→ethyl 2-(4-(2-hydroxyethyl)phenyl)-2-methylpropanoate

比拉斯汀优化路线steps: 4total yield: 7 g

1-(2-ethoxyethyl)-2-(piperidin-4-yl)-1H-benzo[d]imidazole→ethyl 2-(4-(2-(4-(1-(2-ethoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoate→methyl 2-methyl-2-phenylpropanoate→2-chloroacetyl chloride→methyl 2-(4-(2-chloroacetyl)phenyl)-2-methylpropanoate→methyl 2-(4-(2-(4-(1-(2-ethoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)acetyl)phenyl)-2-methylpropanoate

Intermediates available on this site

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Supplier	Product	Price band	MOQ	Lead time	Qualifications
Qualified Partner — East China API Works	1-(2-Ethoxy-ethyl)-2-piperidin-4-yl-1H-benzimidazole Pharmaceutical Intermediates	询价	询价	询价	—

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