Synthesis and Caco-2 cell permeability of N-substituted anthranilamide esters as ADP inhibitor in platelets
作者:Sohee Kim、Beom Soo Shin、Eunsook Ma
DOI:10.1007/s12272-014-0353-1
日期:2015.6
Twelve N-substituted anthranilamide esters (1–5, 8, 9, 12, 13, and 15–17) were synthesized and evaluated for their ability to inhibit the in vitro aggregation by washed human platelets induced by adenosine 5′-diphosphate (10 μM). The antiplatelet activity of dl-n-butyl 5-hydroxy-N-(2-phenoxypropionyl)anthranilate (9, IC50 = 10.5 μM) was most active among the tested compounds and ethyl ester 8 (IC50 = 11.2 μM) showed the second most activity. dl-Ethyl and dl-n-butyl 5-(p-toluenesulfonyloxy)-N-(2-phenoxypropionyl)anthranilate (12, IC50 = 13.1 μM and 13, IC50 = 14.0 μM), dl-methyl N-(2-phenoxybutyryl)anthranilate (2, IC50 = 12.7 μM), dl-N-(2-phenoxypropionyl)anthranilic acid (5, IC50 = 13.7 μM) displayed lower antiplatelet activity than 8 and 9. Compound 5 was more active than methyl ester prodrug 1. n-Butyl 5-hydroxy-N-(4′-acetoxybenzoyl)anthranilate (15, IC50 = 28.3 μM) showed moderate activity. Compounds 1 (IC50 = 42.8 μM), 4 (IC50 = 56.7 μM), 16 (IC50 = 51.0 μM), and 17 (IC50 = 49.8 μM) exhibited low antiplatelet activity. Methyl N-phenoxyacetylanthranilate (3, IC50 = 78.0 μM) showed the lowest antiplatelet activity. The compounds with branched alkyl chain (2 and 5) were more active than compounds with straight chain (3 and 4). The apparent permeability coefficient (Papp, cm/s) values of compounds 2 and 9 were determined as 45.34 ± 4.67 and 33.17 ± 5.15 × 10−6 cm/s by Caco-2 cell permeability assay.
我们合成了 12 种 N-取代的蒽酰胺酯(1-5、8、9、12、13 和 15-17),并评估了它们抑制由 5′-二磷酸腺苷(10 μM)诱导的洗过的人血小板体外聚集的能力。在受试化合物中,5-羟基-N-(2-苯氧基丙酰基)蒽酸 dl-正丁酯(9,IC50 = 10.5 μM)的抗血小板活性最强,乙酯 8(IC50 = 11.5-(对甲苯磺酰氧基)-N-(2-苯氧基丙酰基)蒽酸 dl-乙基和 dl-正丁酯(12,IC50 = 13.1 μM和13,IC50 = 14.0 μM)、N-(2-苯氧基丁酰)蒽酸二甲基酯(2,IC50 = 12.7 μM)、dl-N-(2-苯氧基丙酰基)蒽酸(5,IC50 = 13.7 μM)的抗血小板活性低于 8 和 9。5-hydroxy-N-(4′-acetoxybenzoyl)anthranilate 正丁酯(15,IC50 = 28.3 μM)显示出中等活性。化合物 1(IC50 = 42.8 μM)、4(IC50 = 56.7 μM)、16(IC50 = 51.0 μM)和 17(IC50 = 49.8 μM)显示出较低的抗血小板活性。N-苯氧基乙酰基噻喃甲酯(3,IC50 = 78.0 μM)的抗血小板活性最低。支链烷基化合物(2 和 5)的活性高于直链化合物(3 和 4)。通过 Caco-2 细胞渗透性试验测定,化合物 2 和 9 的表观渗透系数(Papp,cm/s)值分别为 45.34 ± 4.67 和 33.17 ± 5.15 × 10-6 cm/s 。