Amino-modified tetraphenylporphyrin compound as well as preparation method and application thereof
A technology of tetraphenylporphyrin and amino modification, which is applied in the field of photosensitive drugs and photodynamic therapy, and can solve the problems of strong dark toxicity of cells
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Embodiment 1
[0034] Preparation of 2-morpholine-5,10,15,20-tetrakis(4-chlorophenyl)porphyrin (photosensitizer 1):
[0035] In a 100mL three-necked flask, 2-nitro-5,10,15,20-tetrakis(4-chlorophenyl)porphyrin (183mg, 0.23mmol) was dissolved in N,N-dimethylformamide (20mL) , adding potassium carbonate (360mg, 2.56mmol) and morpholine (0.2mL), heated to reflux for about 3h, and monitored by TLC until the reaction was complete. The reaction solution was evaporated to dryness, and dichloromethane (150 mL) was added for extraction. The organic phase was washed with water (100 mL×3), washed with saturated brine (100 mL×3), dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure, and the resulting residue was subjected to column chromatography (eluent: petroleum ether:dichloromethane=10:1) to obtain a purple solid powder 2-morpholine-5,10,15,20-tetra( 111.4 mg of 4-chlorophenyl) porphyrin, the yield was 58%. 1 H NMR (400MHz, CDCl3): δ8.80-8.68(m, 5...
Embodiment 2
[0037] Preparation of 2-tetrahydropyrrole-5,10,15,20-tetrakis(4-chlorophenyl)porphyrin (photosensitizer 2):
[0038] In a 100mL three-necked flask, 2-nitro-5,10,15,20-tetrakis(4-chlorophenyl)porphyrin (183mg, 0.23mmol) was dissolved in N,N-dimethylformamide (20mL) , adding potassium carbonate (360mg, 2.56mmol) and tetrahydropyrrole (0.2mL), heated to reflux for about 3h, and monitored by TLC until the reaction was complete. The reaction solution was evaporated to dryness, and dichloromethane (150 mL) was added for extraction. The organic phase was washed with water (100 mL×3), washed with saturated brine (100 mL×3), dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure, and the resulting residue was subjected to column chromatography (eluent: petroleum ether:dichloromethane=3:1) to obtain a purple solid powder 2-tetrahydropyrrole-5,10,15,20-tetrahydropyrrole (4-Chlorophenyl)porphyrin 90.4 mg, yield 48%. 1 H NMR (400MHz, CDCl...
Embodiment 3
[0040] Preparation of 2-piperidine-5,10,15,20-tetrakis(4-chlorophenyl)porphyrin (photosensitizer 3):
[0041] In a 100mL three-necked flask, 2-nitro-5,10,15,20-tetrakis(4-chlorophenyl)porphyrin (183mg, 0.23mmol) was dissolved in N,N-dimethylformamide (20mL) , adding potassium carbonate (360mg, 2.56mmol) and piperidine (0.3mL), heated to reflux for about 3h, monitored by TLC until the reaction was complete. The reaction solution was evaporated to dryness, and dichloromethane (150 mL) was added for extraction. The organic phase was washed with water (100 mL×3), washed with saturated brine (100 mL×3), dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure, and the resulting residue was subjected to column chromatography (eluent: petroleum ether: dichloromethane = 3: 1) to obtain a purple solid powder 2-piperidine-5,10,15,20-tetra( 4-chlorophenyl) porphyrin 88.2 mg, yield 46%. 1 H NMR (400MHz, CDCl 3 ): δ8.83-8.81(m, 3H), 8.76-8...
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