4 j 2 0 hz and 4 j u02dc 1 0 hz h 6 u2032 4 04 3h s h 6a 4 00 3h s h 7a iv kbr cm u2212 1 u03bd 3428 n u2014 h 3041 c u2014 h of an aromatic 1640 c u2014 n of an aromatic 1521 c u2014 c of an aromatic 1284 c u2014 o u2014 c 991 c u2014 cl 877 774 c u2014 h ms ei m z 315 0 m 71 3 314 0 m u2212 h 100 elementary analysis for c 16 h 14 n 3 o 2 cl hcl u2014 calculated c 54 56 h 4 29 n 11 93 determined c 54 43 h 4 17 n 11 27 obtainment of 6 7 dimethoxy 4 4 u2032 chloroanilino quinazoline hydrochloride 4c u2032 hennequin et al j med chem 1999 42 5369 yield of 0 105 g 0 298 mmol 67 melting point 282 284 u00b0 c rmn of 1 h 500 mhz cd 3 2 so ppm u03b4 11 16 1h s nh 8 74 1h s h 2 8 28 1h s h 5 7 79 2h d 3 j 8 5 hz h 2 u2032 and h 6 u2032 7 50.