Diamino heterocyclic carboxamide compound
A compound and heterocyclic technology, applied in the directions of active ingredients of heterocyclic compounds, organic chemistry, pharmaceutical combinations, etc., can solve the problems of not specifically disclosing diaminoheterocyclic carboxamide compounds and the like
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[0387] The preparation method of the compound represented by formula (I) will be described in more detail below based on the examples. Furthermore, the present invention is not limited only to the compounds described in the following examples. In addition, the production methods of the raw material compounds are shown in the production examples, respectively. In addition, the preparation method of the compound shown in (I) is not limited to the preparation method shown in the specific examples below, the compound shown in formula (I) can also be obtained by the combination of these preparation methods, or those skilled in the art method to prepare.
[0388] In addition, the following abbreviations are sometimes used in Examples, Preparation Examples, and Tables described below.
[0389] Rex: Preparation number
[0390] Ex: Example number
[0391] Structure: Chemical structural formula
[0392] Data: Physicochemical data (FAB+: FAB-MS[M+H] + ,ESI+:ESI-MS[M+H] + , APCI / ES...
preparation example 4
[0395] A mixture of 4-methyl-3-nitrobenzoic acid (1.97 g) and thionyl chloride (6 mL) was heated at reflux for 18 hours. After concentrating the reaction solution under reduced pressure, it was azeotroped with toluene to obtain a reddish-brown oil. To a mixture of the reddish-brown oil and THF (25 mL) was added diethylamine (2.6 mL) under ice-cooling, followed by stirring at room temperature for 5 hours. The reaction solution was poured into water, and extracted with ethyl acetate. The organic layer was washed with saturated brine, then dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure to obtain N,N-diethyl-4-methyl-3-nitrobenzamide (2.61g) as a brown oil .
preparation example 41
[0397] To a mixture of 2-methoxy-4-nitrobenzenesulfonyl chloride (600 mg) and THF (5 mL) was added a mixture of piperidine (406 mg) and THF (1 mL), and stirred at room temperature for 12 hours. 10% hydrochloric acid was added to the reaction liquid, followed by extraction with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure to obtain 1-[(2-methoxy-4-nitrophenyl)sulfonyl]piperidine (714 mg) as a yellow solid .
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