With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1242156-59-7,6-(tert-Butyl)-8-fluorophthalazin-1(2H)-one,as a common compound, the synthetic route is as follows.
Example 101i 2-(6-tert-Butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-6-chlorobenzaldehyde 101i To a 10 mL round bottom flask were added 6-tert-butyl-8-fluoro-2H-phthalazin-1-one 101h (640 mg, 2.9 mmol), 2-chloro-6-fluorobenzaldehyde (506 mg, 3.2 mmol), and cesium carbonate (488 mg, 1.5 mmol). The flask was evacuated and backfilled with nitrogen three times then ethoxytrimethylsilane (684 mg, 5.8 mmol) and DMF (5 mL) were added to the reaction flask. The resulting mixture was heated to 60 C. After 4 h of stirring, the solution was allowed to cool down to ambient temperature and the reaction was quenched by addition of 2 mL of H2O drop-wise. The desired product started to precipitate from the DMF and water mixture. The solid was collected by filtration after cooling down to 5 C., and washed with DMF/water (2/1, 2 mL, pre-cooled to 6 C.) and H2O (2 mL). The filter cake was dried under vacuum oven at 65 C. for overnight to afford 519 mg (52%) of 101i as a yellow solid. MS: [M+H]+: 359, 1242156-59-7
The synthetic route of 1242156-59-7 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; GENENTECH, INC.; Crawford, James John; Ortwine, Daniel Fred; Wei, BinQing; Young, Wendy B.; US2013/116246; (2013); A1;,
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