Aminopyrimidopyrazole/pyrrole derivatives and preparation method and use thereof
An alkyl and aryl technology, applied in the direction of drug combination, pharmaceutical formula, medical preparations containing active ingredients, etc., to achieve the effect of inhibiting the growth of tumors
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[0120] Example 1 Preparation of the compound of the present invention
[0121]
[0122] Raw material 1 (1.08 g, 8 mmol) was dissolved in DMF (20 mL), N-iodosuccinimide (4.5 g, 20 mmol) was added, and the reaction was performed at 80° C. for 5 h and monitored by TLC. After the reaction was completed, the reaction was quenched with a saturated aqueous solution of hydrosulfite, the reaction solution was poured into water, a yellow solid was precipitated, the solid was filtered and dried to obtain Intermediate 2 (white solid, 98%), MS m / z (ESI) : 261.9[M+H] + .
[0123]
[0124] Intermediate 2 (2.09 g, 8 mmol) was dissolved in 150 mL of tetrahydrofuran, compound 3 (1.8 g, 9.6 mmol), triphenylphosphine (4.2 g, 16 mmol) were added, N 2 protection, stirred at 0 °C, and then added dropwise diisopropyl azodicarboxylate (3.1 mL, 16 mmol), the dropwise addition was completed, and after half an hour, the reaction was transferred to room temperature for 3 h and monitored by TLC. A...
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