Synthesis and local anesthetic activity of 1-amino-2-phenylethyl derivatives of 1,5-benzodioxepine and 1,6-benzodioxocine
作者:V. K. Daukshas、Yu. Yu. Ramanauskas、L. K. Labanauskas、É. B. Udrenaite、I. Yu. Yautakene、V. V. Lapinskas、N. A. Lauzhikene、R. S. Maskalyunas
DOI:10.1007/bf00758417
日期:1989.4
7-(l-Amino-2-phenylethyl)-2H-3,4-dihydro-l,5-benzodioxepine (Id) is synthesized by the Leuckart reaction on heating 7-phenylacetyl-2H-3,4-dihydro-l,5-benzodioxepine (Ib) with formamide and formic acid followed by acid hydrolysis of the N-formyl derivative that is produced. 8-Phenylacetyl-2,3,4,5-tetrahydro-l,6-benzodioxocine (IIb) forms tar under these reaction conditions, but it was possible to obtain
7-(l-氨基-2-苯乙基)-2H-3,4-二氢-l,5-苯并二氧杂环庚烷 (Id) 通过加热 7-苯乙酰基-2H-3,4-二氢-l 的 Leuckart 反应合成, 5-苯并二氧杂环庚英 (Ib) 与甲酰胺和甲酸,然后酸解生成的 N-甲酰基衍生物。8-Phenylacetyl-2,3,4,5-四氢-l,6-benzodioxocine (IIb) 在这些反应条件下形成焦油,但有可能获得 8-(l-amino-2-phenylethyl)-2,3 ,4,5-四氢-1,6-苯并二氧杂辛 (lid) 通过在丁醇中用金属钠还原相应的酮肟 (IIc)。酮 Ib 和 IIb 通过相应的苯并二氧杂环杂环 Ia 和 IIa 与苯乙酰氯在无水氯化铝存在下酰化合成