Synthesis of a novel tricyclic 4-quinolone. Incorporation of a spiro-cyclopropyl group at N1 by bridging to C2
作者:Mel C. Schroeder、John S. Kiely
DOI:10.1002/jhet.5570250632
日期:1988.11
An important pharmacophore in many quinolone antiinfectives is the N1 cyclopropane. By incorporating the cyclopropane into a N1 to C2 bridge, the first quinolone substrate incorporating a spiro fused cyclopropane, 8,9,10-trifluoro-2,3,4,6-tetrahydro-6-oxospiro[1H-benzo[c]quinolizine-1,l-cyclopropane]-5-carboxylic acid, ethyl ester (8), was prepared.
N1环丙烷是许多喹诺酮类抗感染药中的重要药效团。通过将环丙烷掺入N1到C2的桥中,第一个喹诺酮底物掺入了螺旋稠合的环丙烷,8,9,10-三氟-2,3,4,6-四氢-6-氧代螺[1 H-苯并[ c ]制备喹唑嗪-1,1-环丙烷] -5-羧酸乙酯(8)。