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【结 构 式】 
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【分子编号】50010 【品名】methyl 2-amino-4-(3-chloropropoxy)-5-methoxybenzoate 【CA登记号】 |
【 分 子 式 】C12H16ClNO4 【 分 子 量 】273.71608 【元素组成】C 52.66% H 5.89% Cl 12.95% N 5.12% O 23.38% |
合成路线1
该中间体在本合成路线中的序号：(V)Alkylation of 4-hydroxy-5-methoxy benzoic acid methyl ester (I) with 3-chloropropyl p-toluene sulfonate (III) by means of K2CO3 and methyl-tricapryl ammonium chloride (Aliquat 128) in refluxing acetone affords compound (III), which is then nitrated by means of HNO3 in HOAc to furnish 2-nitro derivative (IV). Reduction of the nitro moiety of (IV) by means of Fe in H2O/MeOH in the presence of ammonium chloride yields 2-amino compound (V), which is subjected to reaction with refluxing dimethylformamide dimethylacetal (VI) to provide amidine (VII). Condensation of (VII) with acetonitrile by means of n-BuLi in hexane/THF/HOAc gives substituted quinoline-carbonitrile (IX), whose hydroxyl group is replaced by a chlorine by treatment of (IX) with refluxing POCl3 to afford compound (X). Coupling of (X) with 2,4-dichloro-5-methoxyaniline (XI) in 2-ethoxyethanol in the presence of pyridine hydrochloride yields compound (XII), which is finally converted into the desired compound by condensation with 1-methylpiperazine (XII) by means of NaI in refluxing ethylene glycol dimethyl ether.
| 【1】 Boschelli, D.H.; Ye, F.; Wang, Y.D.; Dutia, M.; Johnson, S.L.; Wu, B.; Miller, K.; Powell, D.W.; Yaczko, D.; Young, M.; Tischler, M.; Arndt, K.; Discafani, C.; Etienne, C.; Gibbons, J.; Grod, J.; Lucas, J.; Weber, J.M.; Boschelli, F.; Optimization of 4-phenylamino-3-quinolinecarbonitriles as potent inhibitors of Src kinase activity. J Med Chem 2001, 44, 23, 3965. |
| 【2】 Boschelli, D.H.; Dutia, M.; Ye, F.; et al.; Inhibition of SRC kinase activity by 4-phenylamino-3-quinolinecarbonitriles Part 2: Optimization of the side chain at C-7. 221st ACS Natl Meet (April 1 2001, San Diego) 2001, Abst MEDI 145. |
| 【3】 Boschelli, D.H.; Wang, Y.D.; Ye, F.; et al.; Synthesis and Src kinase inhibitory activity of a series of 4-phenylamino-3-quinolinecarbonitriles. J Med Chem 2001, 44, 5, 822. |
| 【4】 Tsou, H.-R.; Wissner, A.; Johnson, B.D.; Reich, M.F.; Floyd, M.B. Jr.; Kitchen, D.B. (American Cyanamid Co.); Substituted 3-cyano quinolines. US 6002008 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (I) | 29176 | methyl 4-hydroxy-3-methoxybenzoate | 3943-74-6 | C9H10O4 | 详情 | 详情 |
| (II) | 19490 | 3-chloro-1-propanol | 627-30-5 | C3H7ClO | 详情 | 详情 |
| (III) | 50008 | methyl 4-(3-chloropropoxy)-3-methoxybenzoate | C12H15ClO4 | 详情 | 详情 | |
| (IV) | 50009 | methyl 4-(3-chloropropoxy)-5-methoxy-2-nitrobenzoate | C12H14ClNO6 | 详情 | 详情 | |
| (V) | 50010 | methyl 2-amino-4-(3-chloropropoxy)-5-methoxybenzoate | C12H16ClNO4 | 详情 | 详情 | |
| (VI) | 11984 | N-(Dimethoxymethyl)-N,N-dimethylamine;dimethylformamide dimethylacetal;1,1-dimethoxy-N,N-dimethylmethanamine； Dimethoxy-N,N-dimethylmethanamine; N,N-Dimethylformamide dimethyl acetal | 4637-24-5 | C5H13NO2 | 详情 | 详情 |
| (VII) | 50011 | methyl 4-(3-chloropropoxy)-2-[[(E)-(dimethylamino)methylidene]amino]-5-methoxybenzoate | C15H21ClN2O4 | 详情 | 详情 | |
| (VIII) | 37210 | acetonitrile | 75-05-8 | C2H3N | 详情 | 详情 |
| (IX) | 50012 | 7-(3-chloropropoxy)-4-hydroxy-6-methoxy-3-quinolinecarbonitrile | C14H13ClN2O3 | 详情 | 详情 | |
| (X) | 48519 | 4-chloro-7-(3-chloropropoxy)-6-methoxy-3-quinolinecarbonitrile | C14H12Cl2N2O2 | 详情 | 详情 | |
| (XI) | 50013 | 2,4-dichloro-5-methoxyphenylamine; 2,4-dichloro-5-methoxyaniline | C7H7Cl2NO | 详情 | 详情 | |
| (XII) | 50014 | 7-(3-chloropropoxy)-4-(2,4-dichloro-5-methoxyanilino)-6-methoxy-3-quinolinecarbonitrile | C21H18Cl3N3O3 | 详情 | 详情 | |
| (XIII) | 10061 | 1-Methylpiperazine; 1-Methyl piperazine; N-Methylpiperazine | 109-01-3 | C5H12N2 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号：(IX)Alkylation of vanillic acid methyl ester (V) with 3-chloropropyl tosylate (VI) in the presence of K2CO3 and Aliquat 336 gives the chloropropyl ether (VII). Subsequent electrophilic nitration of (VII) in hot HOAc affords the ortho-nitrobenzoate (VIII), which is further reduced to the amino benzoate analogue (IX) employing Fe/NH4Cl. Condensation of amino ester (IX) with dimethylformamide dimethylacetal provides adduct (X). This is then converted to the key quinoline derivative (XI) upon condensation with acetonitrile in the presence of butyllithium. Chlorination of (XI) with boiling POCl3 leads to the 4-chloroquinoline (XII). This is then coupled with the (imidazolylsulfanyl)aniline (IV) using pyridinium chloride in refluxing ethoxyethanol to furnish the anilino quinoline adduct (XIII). Finally, displacement of the chloride group of (XIII) with morpholine (XIV) in DMF provides the title compound.
| 【1】 Dutia, M.; Powell, D.W.; Berger, D.M.; et al.; Synthesis and evaluation of 4-anilino substituted 3-quinolinecarbonitriles as inhibitors of kinases of the Ras-MAPK signaling cascade. 224th ACS Natl Meet (Aug 18 2002, Boston) 2002, Abst MEDI 105. |
| 【2】 Frost, P.; Floyd, M.B. Jr.; Wissner, A.; Hamann, P.R.; Zhang, N.; Tsou, H.-R.; Berger, D.M.; Salvati, M.E. (Wyeth); Substd. 3-cyanoquinolines as protein tyrosine kinase inhibitors. EP 1117659; JP 2002525369; WO 0018761 . |
| 【3】 Frost, P.; Floyd, M.B. Jr.; Wissner, A.; Hamann, P.R.; Zhang, N.; Tsou, H.-R.; Berger, D.M.; Salvati, M.E. (Wyeth); Substd. 3-cyanoquinolines. US 6288082 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (IV) | 58443 | 3-chloro-4-[(1-methyl-1H-imidazol-2-yl)sulfanyl]aniline; 3-chloro-4-[(1-methyl-1H-imidazol-2-yl)sulfanyl]phenylamine | C10H10ClN3S | 详情 | 详情 | |
| (V) | 29176 | methyl 4-hydroxy-3-methoxybenzoate | 3943-74-6 | C9H10O4 | 详情 | 详情 |
| (VI) | 55581 | 3-Chloropropyl-p-toluenesulfonate | C10H13ClO3S | 详情 | 详情 | |
| (VII) | 50008 | methyl 4-(3-chloropropoxy)-3-methoxybenzoate | C12H15ClO4 | 详情 | 详情 | |
| (VIII) | 50009 | methyl 4-(3-chloropropoxy)-5-methoxy-2-nitrobenzoate | C12H14ClNO6 | 详情 | 详情 | |
| (IX) | 50010 | methyl 2-amino-4-(3-chloropropoxy)-5-methoxybenzoate | C12H16ClNO4 | 详情 | 详情 | |
| (X) | 50011 | methyl 4-(3-chloropropoxy)-2-[[(E)-(dimethylamino)methylidene]amino]-5-methoxybenzoate | C15H21ClN2O4 | 详情 | 详情 | |
| (XI) | 50012 | 7-(3-chloropropoxy)-4-hydroxy-6-methoxy-3-quinolinecarbonitrile | C14H13ClN2O3 | 详情 | 详情 | |
| (XII) | 48519 | 4-chloro-7-(3-chloropropoxy)-6-methoxy-3-quinolinecarbonitrile | C14H12Cl2N2O2 | 详情 | 详情 | |
| (XIII) | 58444 | 4-{3-chloro-4-[(1-methyl-1H-imidazol-2-yl)sulfanyl]anilino}-7-(3-chloropropoxy)-6-methoxy-3-quinolinecarbonitrile | C24H21Cl2N5O2S | 详情 | 详情 | |
| (XIV) | 10388 | Morpholine | 110-91-8 | C4H9NO | 详情 | 详情 |