Polycyclic N-Heterocyclic Compounds. Part 64: Synthesis of 5-Amino-1,2,6,7-tetrahydrobenzo[f]furo[2,3-c]isoquinolines and Related Compounds. Evaluation of Their Bronchodilator Activity and Effects on Lipoprotein Lipase mRNA Expression
作者:Kensuke Okuda、Hiroshi Deguchi、Setsuo Kashino、Takashi Hirota、Kenji Sasaki
DOI:10.1248/cpb.58.685
日期:——
dihydrofuran ring cleaved product, the structure of which was confirmed by X-ray crystallographic analysis. Effects of the newly synthesized compounds on carbamylcholine chloride-induced contractions of trachea and lipoprotein lipase mRNA expression were also evaluated and found one promising bronchodilator.
1-(3-氰基丙氧基)-3,4-二氢萘-2-腈与叔丁醇钾反应生成5-氨基-1,2,6,7-四氢苯并[f]呋喃[2,3-c]异喹啉通过Truce-Smiles重排。将5-氨基转化为溴代衍生物,使其与脂族环胺反应以产生氨基衍生物。相反,咪唑和NaH的组合得到二氢呋喃环裂解的产物,其结构通过X射线晶体学分析证实。还评估了新合成的化合物对氨甲酰胆碱氯化物诱导的气管收缩和脂蛋白脂肪酶mRNA表达的影响,发现了一种有希望的支气管扩张剂。