Author/Authors :
Berthet، نويسنده , , Jérôme and Delbaere، نويسنده , , Stephanie and Carvalho، نويسنده , , Luis M. and Vermeersch، نويسنده , , Gaston and Coelho، نويسنده , , Paulo J.، نويسنده ,
Abstract :
The synthesis of the 5′-hydroxy-1,3,3-trimethylspiro[indoline-2,3′-[3H]naphtho[1,2-b][1,4]oxazine] is reported. Equilibrium in the dark between closed and open forms has been proved by NMR spectroscopy.