Phenanthrenequinolizidine alkaloid derivatives and their salts and their preparation, anti-plant virus and anti-cancer activities
A technology of phenanthroquinol and risidine, which is applied in the field of phenanthroquinol and risidine alkaloid derivatives and their salts, can solve the problems of photothermal instability, difficulty in repeating, poor water solubility, etc., and achieve excellent resistance The effect of plant virus activity and good anticancer activity
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Embodiment 1
[0039] Embodiment 1: Synthesis of phenanthroquinolizidine alkaloid derivatives I-a-1~I-a-13
[0040] 2,3-Dimethoxy-6-benzyloxy-phenanthrene-[9,10-b]-quinolizidine (I-a-8) and 6-hydroxy-2,3-dimethoxy-phenanthrene -[9,10-b]-quinolizidine (I-a-9) synthesis:
[0041]
[0042] Synthesis of 2-(3,4-dimethoxyphenyl)-3-(4-hydroxyphenyl)methyl acrylate Add 19.6g (0.1mol) 3,4-dimethyl in sequence to a 250mL four-necked reaction flask Oxyphenylacetic acid, 12.2g (0.1mol) 4-methoxybenzaldehyde, 40mL acetic anhydride and 20mL triethylamine were stirred and heated for 20h. The mixture was cooled to room temperature, 60 mL of water was added thereto, reacted for 8 h, filtered, and washed with methanol to obtain a yellow solid, 22.1 g in total, and the above yellow solid, 600 mL of methanol, and 4 g of concentrated sulfuric acid were added to a 1 L four-neck flask, and heated Reaction 12h. The reaction solution was desolvated to obtain a brown solid, which was recrystallized with methano...
Embodiment 2
[0082] Embodiment 2: Synthesis of phenanthroquinolizidine alkaloid derivatives I-b-1~I-b-7 and I-c-1
[0083] 2,3,6,7-Tetrabenzyloxycarbonyloxy-phenanthrene-[9,10-b]-quinolizidine (I-b-1) and 2,3,6,7-tetrahydroxy-phenanthrene- Preparation of [9,10-b]-quinolizidine (I-c-1)
[0084]
[0085] Synthesis of 2,3,6,7-tetrabenzyloxycarbonyloxy-phenanthrene-[9,10-b]-quinolizidine (I-b-1) Add 0.4g (1mmol) to a 250mL one-necked bottle 2,3,6,7-Tetramethoxy-phenanthrene-[9,10-b]-quinolizidine (I-a-7), 80mL dichloromethane, install constant pressure dropping funnel and drying tube, in Add 20mL of dichloromethane and 3mL of boron tribromide into the constant pressure dropping funnel, put the reaction bottle into a low-temperature bath, stir the reaction, and add the dichloromethane solution of boron tribromide dropwise. After the dropwise addition, react for 36h. Add methanol, spin out the reaction solution, add 60mL of water and 60mL of tetrahydrofuran to dissolve the residue, pour it...
Embodiment 3
[0101] Example 3: 2,3,6,7-tetramethoxy-phenanthrene-[9,10-b]-quinolizidine-9-formic acid ethyl ester (I-d-1) and 2,3,6, Preparation of 7-tetramethoxy-phenanthrene-[9,10-b]-quinolizidine-9-methanol (I-d-2)
[0102]
[0103] Synthesis of ethyl 2,3,6,7-tetramethoxy-phenanthrene-[9,10-b]-quinolizidine-9-carboxylate (I-d-1)
[0104] In a 100mL four-neck flask, add 0.8g (2mmol) 2-(2,3,6,7-tetramethoxy-9-phenanthrenylmethyl)-piperidine, 60mL acetonitrile, pass through argon protection, add 2.6 mL50% ethyl glyoxylate solution in toluene, add 0.1mL glacial acetic acid. The reaction was stirred at room temperature for 24h. Add saturated sodium bicarbonate solution for treatment, extract with dichloromethane, wash twice with saturated sodium bicarbonate, then wash once with saturated brine, add anhydrous sodium sulfate to dry, filter and precipitate to obtain a yellow solid 0.9g, yield 83.3%, melting point 167-169°C; 1 HNMR (400MHz, CDCl 3 )δ1.25(t, J=7.2Hz, 3H), 1.41-1.54(m, 2H)...
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