Polycyclic<i>N</i>-Heterocyclic Compounds 73: Synthesis and Evaluation of 5-Substituted 1,2-Dihydrofuro[2,3-<i>c</i>]isoquinolines as Inducers of Lipoprotein Lipase mRNA Expression
Several 5-substituted 1,2-dihydro[2,3-c]isoquinoline derivatives were synthesized as part of our research to develop new diabetes drugs. Amines and sulfanyls were used as substituents at the 5th-position. Evaluation of the effects of the newly synthesized compounds on lipoproteinlipasemRNAexpression in 3T3-L1 preadipocytes revealed one promising candidate with potency comparable to that of troglitazone
几种5-取代的1,2-二氢[2,3- c ]异喹啉衍生物被合成,作为我们开发新的糖尿病药物的研究的一部分。胺和硫烷基用作第5位的取代基。评估新合成的化合物对3T3-L1前脂肪细胞中脂蛋白脂肪酶mRNA表达的影响后,发现了一种有潜力的候选药物,其效力可与3T3-L1前脂肪细胞媲美。曲格列酮。
Polycyclic <i>N</i>-Heterocyclic Compounds 74: Rearrangement Reaction of 5-Amino-1,2-dihydrofuro[2,3-<i>c</i>]isoquinolines with <font>α</font>,<font>ω</font>-Dibromoalkanes and Evaluation of Product Bronchodilator Activity
Reaction of 5-amino-1,2-dihydrofuro[2,3-c]isoquinolines with 1,2-dibromoethane and 1,3-dibromopropane in the presence of a base afforded 2',3'-dihydrospiro[cyclopropane-1,6'(5'H)-imidazo[2,1-a]isoquinolin]-5'-ones land 3',4'-dihydro-2'H-spiro[cyclopropane-1,7'(6'H)-pyrimido[2,1-a]isoquinolin]-6'-ones, respectively. Certain of the products showed significant bronchodilator activity.
Polycyclic N-Heterocyclic Compounds. Part 63: Improved Synthesis of 5-Amino-1,2-dihydrofuro[2,3-c]isoquinolines via Truce-Smiles Rearrangement and Subsequent Formation to Furo[2,3-c]isoquinoline
An improved synthesis of 5-amino-1,2-dihydrofuro[2,3-c]isoquinoline has been achieved using a slight modification of reaction conditions for the Truce-Smiles rearrangement. Acid treatment of the obtained 5-amino-1,2-dihydrofuro[2,3-c]isoquinolines gave unexpected ring-opened spiro ring compounds. The previously unreported parent compound, furo[2,3-c]isoquinoline, was also synthesized.