Alkylation of heterocyclic bases with azidomethyloxirane (I) under basic catalysis with potassium or cesium carbonate afforded N-(3-azido-2-hydroxypropyl) derivatives II. Hydrogenation of these compounds over palladium on carbon gave the corresponding 3-amino-2-hydroxypropyl derivatives III. The same compounds III were prepared by alkylation of heterocyclic bases with phthalimidomethyloxirane (VII) in the presence of cesium carbonate and subsequent reaction of the formed N-(3-phthalimido-2-hydroxypropyl) derivatives VIII with hydrazine. The phthalimido derivatives VIII are easily hydrolyzed already in weakly alkaline aqueous medium to give 9-[3-(o-carboxybenzoylamino)-2-hydroxypropyl] derivatives IX and X.
杂环碱与氮甲基环氧丙烷(I)在钾或铯碳酸盐的碱性催化下发生烷基化反应,形成N-(3-叠氮-2-羟基丙基)衍生物II。将这些化合物在钯碳上进行氢化反应,得到相应的3-氨基-2-羟基丙基衍生物III。同样的化合物III可通过在铯碳酸盐存在下,将杂环碱与邻苯二甲酰亚氨基环氧丙烷(VII)发生烷基化反应,并将形成的N-(3-邻苯二甲酰亚氨基-2-羟基丙基)衍生物VIII与联氨反应制备。邻苯二甲酰亚氨基衍生物VIII在弱碱性水介质中易于水解,形成9-[3-(邻二甲酰苯胺基)-2-羟基丙基]衍生物IX和X。