发明名称 WERKWIJZE VOOR DE BEREIDING VAN AMINOETHANOLEN MET BRONCHODILATORE WERKING, WERKWIJZE VOOR DE BEREIDING VAN EEN GENEESMIDDEL MET EEN DERGELIJKE WERKING EN EEN DERGELIJK GENEESMIDDEL.
摘要 <p>1467794 Benzodioxoles NICHOLAS INTERNATIONAL Ltd 27 Nov 1975 48710/75 Heading C2C Compounds of the general formula (R, R 1 = H, C 1-4 alkyl; R<SP>3</SP> = phenolic protecting group; R<SP>4</SP>=alkyl) are prepared by reacting an alkyl 2-protected hydroxy-5-haloacetylbenzoate with the appropriate 3,4-methylenedioxyphenethylamine, followed by reduction. If R<SP>4</SP> is a methyl group it may be replaced by a branched alkyl group by effecting the reduction in the presence of the corresponding alcohol. The alkoxycarbonyl group in the product may be reduced to a hydroxymethyl group, followed by removal of the protecting group, salt formation and/or isomer separation.</p>
申请公布号 NL7613066(A) 申请公布日期 1977.06.01
申请号 NL19760013066 申请日期 1976.11.24
申请人 NICHOLAS INTERNATIONAL LIMITED TE MELBOURNE, AUSTRALIE. 发明人
分类号 C07D317/58;(IPC1-7):07D317/58;61K31/36 主分类号 C07D317/58
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