(2,3-dichloro-4-ethoxyphenyl)(4-methoxyphenyl)methanone -Drug Synthesis Database

【结构式】

【分子编号】23021

【品名】(2,3-dichloro-4-ethoxyphenyl)(4-methoxyphenyl)methanone

【CA登记号】

【分子式】C₁₆H₁₄Cl₂O₃

【分子量】325.19076

【元素组成】C 59.1% H 4.34% Cl 21.8% O 14.76%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号：(I)

Friedel-Crafts acylation of 2,3-dichlorophenetole with 4-methoxybenzoyl chloride gives the substituted benzophenone (I). Selective cleavage of the ethyl ether in (I) with AlCl3 produces phenol (II). Alkylation of (II) with ethyl bromoacetate is followed by heating with 48% HBr to give the phenoxyacetic acid derivative (III). Amidomethylation of (III) using the Tscherniac-Einhorn procedure gives (IV), which affords A-49816 after hydrolysis with HCl/EtOH.

参考文献中间体

合成目标

【1】 Plattner, J.J.; Horrom, B.W.; Dodge, P.W.; Ours, C.W.; Lee, C.-M.; Pernet, A.G.; El Masry, S.E.; Smital, J.R.; Bunnell, P.R.; [(Aminomethyl)aryloxy]acetic acid esters. A new cl. J Med Chem 1984, 27, 1579.
【2】 Luther, R.R.; Plattner, J.J.; A-49816. Drugs Fut 1988, 13, 12, 1039.

中间体序号	中间体编号	品名	CAS号	分子式	供应商	用于合成
(A)	22671	4-Methoxybenzoyl chloride; p-Methoxybenzoyl chloride; 4-Anisoyl chloride	100-07-2	C₈H₇ClO₂	详情	详情
(B)	23019	1,2-dichloro-3-ethoxybenzene; 2,3-dichlorophenyl ethyl ether		C₈H₈Cl₂O	详情	详情
(I)	23021	(2,3-dichloro-4-ethoxyphenyl)(4-methoxyphenyl)methanone		C₁₆H₁₄Cl₂O₃	详情	详情
(II)	23022	(2,3-dichloro-4-hydroxyphenyl)(4-methoxyphenyl)methanone		C₁₄H₁₀Cl₂O₃	详情	详情
(III)	23023	2-[2,3-dichloro-4-(4-hydroxybenzoyl)phenoxy]acetic acid		C₁₅H₁₀Cl₂O₅	详情	详情
(IV)	23024	2-[2,3-dichloro-4-(3-[[(2-chloroacetyl)amino]methyl]-4-hydroxybenzoyl)phenoxy]acetic acid		C₁₈H₁₄Cl₃NO₆	详情	详情
(C)	23020	2-chloro-N-(hydroxymethyl)acetamide	2832-19-1	C₃H₆ClNO₂	详情	详情

Extended Information