V. Benedettidoctorovich et al., SYNTHESIS OF THYL-(Z)-4-(PHENYLIMINO)NAPHTH[2,3-D]OXAZOL-9-ONE, A MONOIMINE QUINONE WITH SELECTIVE CYTOTOXICITY TOWARD CANCER-CELLS, Journal of medicinal chemistry, 37(5), 1994, pp. 710-712
A regio and stereospecific synthesis of ethyl-(Z)-4-(phenylimino)napht
h[2,3-d]oxazol-9-one (1) was achieved by using titanium tetrachloride
in methylene chloride in the preparation of the imine. The regiochemis
try was assigned by single-crystal X-ray analysis. In vitro tests show
ed that this diastereomer is selectively active for some solid cancer
tumors.