163998. lajstromszámú szabadalom • Eljárás kinoxalin 1,4-dioxid-származékok előállítására

13 163998 14 Példa- r szama \ R2 2 yCH

3 NCH

3 3-;r:

' /CH

3 XCH

3 4 /CH

3 CH3 5 /CH3 XCH

3 6 /CH3 CH3 7 /CH3 CH3 8 ,CH3 -N

\ CH3 9 /CH3 CH3 10 11 12 16 -N -N -N / C2

H

S C2H5 -NHH =N-NH-CO-OCH3 =N-NH-CO-0-CH2

-CH

2

-OH =N-NH-CO-0-C2

H

5 =N-NH-CO-NH, =N-NH-CO-N O =N-NH-CO-( N =NOH =N-NH-CS-NH, =N-NH-CO-OCH, =N-NH-CO-OCH, =N-NH-CO-OCH3 13 -NHCH3 =N-NH-CO-OCH3 14 -NH-CH2

-CH

2

-OH =N-NH-CO-OCH3 15 -NH-C3

H

7 =N-NH-CO-OCH3 =N-NH-CO-OCH3 ^CH3 17 -NH-CH <^ ^CH3 =N-NH-CO-OCH3 18 -NH-C2

H

5 =N-NH-CO-OCH3 19 -NHCH3 =NOH Olvadáspont C° 203-204 185-188 174-176 217-218 180 205-206 182 230 222-223 221-222 203-206 228 220 215 223 226 227 243 7