Studies on Pyrimidine-Annelated Heterocycles; 8.1 Intramolecular Cycloaddition of Thiophene and Nitrile Oxide or Nitrone Groups Bonded to 1,3-Dimethyluracils

Obtention d'aryl-7 dimethyl-8,10 hexahydrothieno [2'',3'':4',5'] isoxazolo [4',3':3,4] pyrido [2,3-d] pyrimidinediones-9,11