Technology Process of [(R)-8-fluoro-2-[4-(3-methoxy-phenyl)-piperazin-1-yl]-3-(2-methoxy-5-trifluoromethyl-phenyl)-3,4-dihydro-quinazolin-4-yl]-acetic acid methyl ester (2R,3R)-2,3-bis-(4-methyl-benzoyloxy)-succinic acid salt
There total 11 articles about [(R)-8-fluoro-2-[4-(3-methoxy-phenyl)-piperazin-1-yl]-3-(2-methoxy-5-trifluoromethyl-phenyl)-3,4-dihydro-quinazolin-4-yl]-acetic acid methyl ester (2R,3R)-2,3-bis-(4-methyl-benzoyloxy)-succinic acid salt which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 6 steps
1: acetonitrile / 38 - 45 h / 35 - 88 °C
2: triethylamine / dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine / Isobutyronitrile / 16 - 22 h / 90 - 102 °C
3: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux
4: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux
5: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate
6: ethyl acetate / 21.17 h / 0 - 20 °C
With
1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; trichlorophosphate;
dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine;
In
1,4-dioxane; Isobutyronitrile; ethyl acetate; chlorobenzene; acetonitrile;
- Guidance literature:
-
Multi-step reaction with 6 steps
1: acetonitrile / 38 - 45 h / 35 - 88 °C
2: triethylamine / dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine / Isobutyronitrile / 16 - 22 h / 90 - 102 °C
3: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux
4: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux
5: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate
6: ethyl acetate / 21.17 h / 0 - 20 °C
With
1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; trichlorophosphate;
dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine;
In
1,4-dioxane; Isobutyronitrile; ethyl acetate; chlorobenzene; acetonitrile;
- Guidance literature:
-
Multi-step reaction with 6 steps
1: sulfuric acid; acetic acid / palladium diacetate / 20 °C
2: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C
3: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux
4: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux
5: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate
6: ethyl acetate / 21.17 h / 0 - 20 °C
With
sulfuric acid; acetic acid; 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate;
palladium diacetate;
In
1,4-dioxane; ethyl acetate; chlorobenzene; acetone;