K. Okuda, M. Yoshida, T. Hirota
Mar 15, 2012
Citations
0
Influential Citations
2
Citations
Journal
Synthetic Communications
Abstract
Abstract 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 and 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. GRAPHICAL ABSTRACT