TA-270

4-羟基-N-(4-羟基-1-甲基-3-辛氧基-2-氧基-1,2-二氢喹啉-7-基)-3,5-二甲氧基肉桂酸酰胺Chemical Name: 4-Hydroxy-N-(4-hydroxy-1-methyl-3-octyloxy-2-oxo-1,2-dihydroquinolin-7-yl)-3,5-dimethoxycinnamic acid amide; 4-Hydroxy-7-(4-hydroxy-3,5-dimethoxycinnamoylamino)-1-methyl-3-octyloxy-2(1H)-quinolinone
CAS No. 194037-25-7
项目整合开发状态: Phase I
项目研究机构: Dainippon Ink & Chemicals (Originator), Chugai (Licensee)
合成路线:Ethyl 4-nitroanthranilate (I) was acetylated with Ac2O to give acetamide (II),which was N-alkylated by means of MeI and NaH in DMF yielding (III).Quinoline (IV) was then obtained by cyclization of (III) in the presence of NaH.Subsequent oxidation of (IV) using iodobenzene diacetate provided the 3-acetoxyquinolinone (V).After protection of the 4-hydroxyl group of (V) with methoxymethyl chloride,the resulting intermediate (VI) was deacetylated by treatment with NaOMe in MeOH affording (VII).The 3-hydroxyquinolinone (VII) was then alkylated with n-octyl iodide to produce octyl ether (VIII),and the methoxymethyl protecting group was further removed by hydrolysis with p-toluenesulfonic acid in MeOH giving (IX).The nitro group of (IX) was then reduced by hydrogenation over Pd/C,and the resulting amine (X) was coupled with 4-acetoxy-3,5-dimethoxycinnamoyl chloride (XI) to afford amide (XII).Finally,the acetate ester of (XII) was cleaved by treatment with NaOMe in MeOH.