【结 构 式】 |
【分子编号】60048 【品名】4-chloro-5,7-dihydro-6H-pyrrolo[2,3-d]pyrimidin-6-one 【CA登记号】 |
【 分 子 式 】C6H4ClN3O 【 分 子 量 】169.57008 【元素组成】C 42.5% H 2.38% Cl 20.91% N 24.78% O 9.44% |
合成路线1
该中间体在本合成路线中的序号:(VII)Condensation of 2-cyano-4,4-diethoxybutyric acid ethyl ester (I) with formamidine hydrochloride (II) in the presence of NaOEt provides the pyrimidine derivative (III). Subsequent hydrolysis of the diethyl acetal of (III) under acidic conditions leads to the pyrrolopyrimidinone (IV). This is converted to the 4-chloro derivative (V) upon treatment with POCl3. Then, oxidation of (V) by means of pyridinium bromide perbromide furnishes the dibromo pyrrolopyridinone (VI), which is further debrominated to (VII) employing zinc dust in AcOH
【1】 Wei, C.C.; Tang, P.C.; McMahon, G.; Sun, L.; Hirth, K.P.; Liang, C.; Cui, J. (Sugen, Inc.); 4-Substd. 7-aza-indolin-2-ones and their use as protein kinase inhibitors. EP 1244672; WO 0146196 . |
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) | 14789 | ethyl 2-cyano-4,4-diethoxybutanoate | C11H19NO4 | 详情 | 详情 | |
(II) | 15369 | Iminoformamide; Methanimidamide | 463-52-5 | CH4N2 | 详情 | 详情 |
(III) | 60044 | 6-amino-5-(2,2-diethoxyethyl)-4(3H)-pyrimidinone | C10H17N3O3 | 详情 | 详情 | |
(IV) | 60045 | 3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one | C6H5N3O | 详情 | 详情 | |
(V) | 60046 | 4-chloro-7H-pyrrolo[2,3-d]pyrimidine;6-Chloro-7-deazapurine;4-chloropyrrolo[2,3-d]pyrimidine;4-Chloro-1H-pyrrolo[2,3-d]pyrimidine | 3680-69-1 | C6H4ClN3 | 详情 | 详情 |
(VI) | 60047 | 5,5-dibromo-4-chloro-5,7-dihydro-6H-pyrrolo[2,3-d]pyrimidin-6-one | C6H2Br2ClN3O | 详情 | 详情 | |
(VII) | 60048 | 4-chloro-5,7-dihydro-6H-pyrrolo[2,3-d]pyrimidin-6-one | C6H4ClN3O | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(VII)Vilsmeier formylation of ethyl 4-methylpyrrole-2-carboxylate (VIII) affords aldehyde (IX). The ethyl ester group of (IX) is subsequently hydrolyzed under alkaline conditions to provide acid (X). Coupling of (X) with 4-(2-aminoethyl)morpholine (XI) gives amide (XII). Then, condensation between aldehyde (XII) and lactam (VII) in the presence of piperidine leads to adduct (XIII). The 4-chloro group of (XIII) is finally displaced with 3-chloro-4-fluoroaniline (XIV) in hot NMP to provide the title compound
【1】 Wei, C.C.; Tang, P.C.; McMahon, G.; Sun, L.; Hirth, K.P.; Liang, C.; Cui, J. (Sugen, Inc.); 4-Substd. 7-aza-indolin-2-ones and their use as protein kinase inhibitors. EP 1244672; WO 0146196 . |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(VII) | 60048 | 4-chloro-5,7-dihydro-6H-pyrrolo[2,3-d]pyrimidin-6-one | C6H4ClN3O | 详情 | 详情 | |
(VIII) | 60049 | ethyl 4-methyl-1H-pyrrole-2-carboxylate | C8H11NO2 | 详情 | 详情 | |
(IX) | 60050 | ethyl 5-formyl-4-methyl-1H-pyrrole-2-carboxylate | C9H11NO3 | 详情 | 详情 | |
(X) | 60051 | 5-formyl-4-methyl-1H-pyrrole-2-carboxylic acid | C7H7NO3 | 详情 | 详情 | |
(XI) | 12880 | 4-(2-Aminoethyl)morpholine; 2-(4-Morpholinyl)ethylamine; 2-(4-Morpholinyl)-1-ethanamine; N-(2-Aminoethyl)morpholine; N-Morpholine ethanamide | 2038-03-1 | C6H14N2O | 详情 | 详情 |
(XII) | 59999 | 5-formyl-4-methyl-N-[2-(4-morpholinyl)ethyl]-1H-pyrrole-2-carboxamide | C13H19N3O3 | 详情 | 详情 | |
(XIII) | 59998 | 5-[(4-chloro-6-oxo-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-5-ylidene)methyl]-4-methyl-N-[2-(4-morpholinyl)ethyl]-1H-pyrrole-2-carboxamide | C19H21ClN6O3 | 详情 | 详情 | |
(XIV) | 18688 | 3-Chloro-4-fluorophenylamine; 3-Chloro-4-fluoroaniline | 367-21-5 | C6H5ClFN | 详情 | 详情 |