Tryptanthrin derivatives and application thereof
A compound and mixture technology, applied in the field of medicine, can solve problems such as T-cell activation signal transduction blockage, achieve good therapeutic effect, broad application prospects, and inhibit cell proliferation
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Embodiment 1
[0040] Example 1 Synthesis of 8-nitropyrido[3',2':4,5]pyrimido[1,2-a]indole-6,12-dione
[0041]
[0042] 5-Nitroindole-2,3-dione (192mg, 1mmol) and 1,8-diazabicycloundec-7-ene (304mg, 2mmol) were dissolved in N,N-dimethyl Formamide (1 mL), stirred at room temperature for ten minutes. Dissolve 3-aminopyridine-2-carboxylic acid (138mg, 1mmol), N-methylmorpholine (202mg, 2mmol), O-benzotriazole-tetramethyluronium hexafluorophosphate (380mg, 1mmol) in In N,N-dimethylformamide (2 mL), the reacted solution of isatin and DBU was added dropwise to the solution, and stirred at room temperature for 20 hours. The solvent was evaporated to dryness and separated by column chromatography (dichloromethane:methanol=80:1) to obtain an orange-yellow solid (400mg, 67%) which was 8-nitropyrido[3',2':4,5]pyrimido [1,2-a]indole-6,12-dione (Compound 3).
[0043] LC-MS: 295[M+H] +
Embodiment 2
[0044] Example 2 Synthesis of 8-nitropyrimido[5',4':4,5]pyrimido[1,2-a]indole-6,12-dione
[0045]
[0046] 5-Nitroindole-2,3-dione (192mg, 1mmol) and 1,8-diazabicycloundec-7-ene (304mg, 2mmol) were dissolved in N,N-dimethyl Formamide (1 mL), stirred at room temperature for ten minutes. Dissolve 5-aminopyrimidine-4-carboxylic acid (138mg, 1mmol), N-methylmorpholine (202mg, 2mmol), O-benzotriazole-tetramethyluronium hexafluorophosphate (380mg, 1mmol) in In N,N-dimethylformamide (2 mL), the reacted solution of isatin and DBU was added dropwise to the solution, and stirred at room temperature for 20 hours. The solvent was evaporated to dryness and separated by column chromatography (dichloromethane:methanol=80:1) to obtain an orange-yellow solid (403mg, 67%) which was 8-nitropyrimido[5',4':4,5]pyrimido [1,2-a]indole-6,12-dione (Compound 5).
[0047] LC-MS: 296[M+H] +
Embodiment 3
[0048] Example 3 Synthesis of 8-nitroindole [2,1-b] pteridine-6,12-dione
[0049]
[0050] 5-Nitroindole-2,3-dione (192mg, 1mmol) and 1,8-diazabicycloundec-7-ene (304mg, 2mmol) were dissolved in N,N-dimethyl Formamide (1 mL), stirred at room temperature for ten minutes. Dissolve 3-aminopyrazine-2-carboxylic acid (139mg, 1mmol), N-methylmorpholine (202mg, 2mmol), O-benzotriazole-tetramethyluronium hexafluorophosphate (380mg, 1mmol) In N,N-dimethylformamide (2 mL), the reacted solution of isatin and DBU was added dropwise to the solution, and stirred at room temperature for 20 hours. The solvent was evaporated to dryness and separated by column chromatography (dichloromethane:methanol=80:1) to obtain an orange-yellow solid (412mg, 69%) which was 8-nitroindole[2,1-b]pteridine-6,12 - diketones (compound 7).
[0051] LC-MS: 296[M+H] +
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