Spirocycles of general structural formula: ##STR1## are Class III antiarrhythmic agents.
通用结构式为:##STR1## 的螺环化合物是III类抗心律失常药物。
One-Pot Synthesis of Spiro Isochromane-3,3′-piperidines, -3,4′-piperidines and -3,3′-pyrrolidines
作者:J. W. Butcher、D. A. Claremon
DOI:10.1055/s-1993-25832
日期:——
Spiro isochromane-1-ones 1 were treated with lithium aluminum hydride or Grignard reagents to afford diol intermediates 2, which cyclize in 85 % phosphoric acid at 100°C to spiro isochromanes 3 in 72-94 % isolated yields.