Compounds of podophyllotoxins, application and preparation method
A technology of compounds and alcohol esters, applied in the field of new podophyllotoxin compounds, can solve the problems of poor water solubility, strong drug resistance, poor oral effect, etc., to achieve delayed drug resistance, appropriate lipid-water partition coefficient, Good anti-tumor effect
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Embodiment 1
[0022] 4′-norepipodophyllotoxin of 4β-4-deoxy-nitrogen substituted valine (5-Fu yl)propanol ester
[0023] Take 10mmol ethyl acetoacetate protected amino acid potassium salt and an equivalent amount of N 1 -Bromopropyl 5-Fu was dissolved in dry DMF, and a trace amount of KI was added to react at room temperature for 24 hours. KBr was filtered off, the filtrate was evaporated under reduced pressure to remove DMF, dissolved in 70ml of ethyl acetate, washed with 50ml of 1M sodium bicarbonate and 2×50ml of water, and dried overnight with anhydrous sodium sulfate. Evaporate the solution under reduced pressure, add 20ml of 1M methanol solution of hydrogen chloride and stir at room temperature for 2 hours, evaporate the solvent under reduced pressure, dissolve with 15ml of water, and extract with 2×15ml of ethyl acetate, distill the water layer under reduced pressure to obtain N 1 - The hydrochloride salt of 5-Fuyl-propanol ester. The above hydrochloride was added to 20ml of dichlo...
Embodiment 2
[0029] 4′-norepipodophyllin of 4β-4-deoxy-nitrogen substituted 5-Fu propyl ester of phenylalanine
[0030] The experimental procedure is the same as in Example 1, except that valine is replaced by phenylalanine. The detection data of the product obtained by the reaction are as follows:
[0031] Yield: 33%; m.p.113-115°C; 1 HNMR (CDCl 3 , TMS, 300MHz): 9.34(br, 1H, CONH*CO), 7.32~7.09(m, 5H, Ar-H), 7.03(d, 1H, H-6(5-Fu), J=5.1Hz) , 6.45(s, 1H, H-5), 6.33(s, 1H, H-8), 6.22(s, 2H, H-2', 6'), 5.95(d, 2H, OCH 2 O, J = 1.8Hz), 5.46 (br, 1H, OH), 4.45 (d, 1H, H-1, J = 5.4Hz), 4.26 (d, 2H, H-11, J = 8.7Hz), 4.10 (t, 2H, OCH 2 , J=6.0Hz), 4.02(d, 1H, H-4, J=3.9Hz), 3.74(s, 6H, OCH 3 ), 3.50(t, 2H, CH 2 -5Fu, J=6.6Hz), 3.38(t, CH*CH 2 Ar, J = 6.9Hz) 3.16 (dd, 1H, H-2, J 1 =13.5, 5.4Hz), 3.01 (m, 2H, ArCH 2 -), 2.75(m, 1H, H-3), 1.85(m, 2H, -CH 2 -);IR(KBr)υcm -1 , 3440, 2918, 1772, 1697, 1481, 1230, 1112; HRMS (ESI) C 37 h 36 o 11 N 3 F, theoretical value (M+Na), 740.222...
Embodiment 3
[0034] 4′-norepipodophyllotoxin of 4β-4-deoxy-nitrogen substituted isoleucine 5-Fu propyl ester
[0035] The experimental procedure is the same as in Example 1, except that the valine in Example 1 is replaced with isoleucine. The detection data of the product obtained by the reaction are as follows:
[0036] Yield: 38%; m.p.118-120°C; 1 HNMR (CDCl 3 , TMS, 300MHz): 8.84 (br, 1H, CONH*CO), 7.28 (d, 1H, H-6(5-Fu), J=5.4Hz), 6.65 (s, 1H, H-5), 6.50 (s, 1H, H-8), 6.24 (s, 2H, H-2', 6'), 5.97 (d, 2H, OCH 2 O, J = 5.4Hz), 5.41 (br, 1H, OH), 4.55 (d, 1H, H-1, J = 5.7Hz), 4.33 (s, 1H, OCHa), 4.30 (s, 1H, OCHb) , 4.23(m, 1H, H-4), 3.95(d, 1H, H-11a), 3.82(t, 2H, CH 2 -5Fu, J=6.0Hz), 3.76(s, 6H, OCH 3 ), 3.60(m, 1H, H-11b), 3.47(s, 1H, OH), 3.42(dd, 1H, H-2, J=13.8, 5.4Hz), 3.29(d, 1H, CH*COO, J=5.4Hz), 2.85(m, 1H, H-3), 2.32(m, 1H, CHMe 2 ), 2.08 (m, 2H, -CH 2 -), 1.74(m, 1H, EtCH*Me), 1.41(m, 1H, MeCHa*CHMe), 1.19(m, 1H, MeCHb*CHMe) 0.89(m, 6H, 2CH 3 ); IR(KBr)υcm -1 , 3439...
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