【结 构 式】 |
【分子编号】23252 【品名】1-heptanamine; heptylamine 【CA登记号】111-68-2 |
【 分 子 式 】C7H17N 【 分 子 量 】115.21872 【元素组成】C 72.97% H 14.87% N 12.16% |
合成路线1
该中间体在本合成路线中的序号:(B)The reaction of p-chlorobenzaldehyde (I) sodium cyanide and ethyl acetate gives ethyl 4-(p-chlorophenyl)-4-oxobutyrate (II), which is hydrolyzed with KOH to the corresponding free acid (III). The reduction of (III) with Zn and aqueous HCl affords 4-(p-chlorophenyl)butyric acid (IV), which is condensed with heptylamine (B) by means of oxalyl chloride (A) in refluxing benzene to yield N-heptyl-4-(p-chlorophenyl)butyramide (V), which is reduced with diborane in refluxing THF to afford N-heptyl-4-(p-chlorophenyl)butylamine (VI). The acetylation of (VI) with acetyl chloride (C) by means of Na2CO3 in acetone gives N-acetyl-N-heptyl-4-(p-chlorophenyl)butylamine (VII), which is reduced with diborane as before to yield N-ethyl-N-heptyl-4-(p-chlorophenyl)butylamine (VIII). The quaternization of (VIII) with refluxing ethyl bromide (D) gives N,N-diethyl-N-heptyl-4-(p-chlorophenyl)butylammonium bromide (IX), which by elution through a column with Dowex 1-X8, hydroxide form, resin is converted into N,N-diethyl-N-heptyl-4-(p-chlorophenyl)butyl ammonium hydroxide (X). Finally, this compound is salified with diluted aqueous phosphoric acid.
【1】 Molloy, B.B.; Steinberg, M.I.; EP 0002604 . |
【2】 Hillier, K.; Castaner, J.; Clofilium Phosphate. Drugs Fut 1981, 6, 12, 764. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(B) | 23252 | 1-heptanamine; heptylamine | 111-68-2 | C7H17N | 详情 | 详情 |
(A) | 29841 | Oxalyl chloride; 2-Chloro-2-oxoacetyl chloride | 79-37-8 | C2Cl2O2 | 详情 | 详情 |
(D) | 30344 | 1-bromoethane;ethyl bromide | 74-96-4 | C2H5Br | 详情 | 详情 |
(I) | 29029 | 4-chlorobenzaldehyde | 104-88-1 | C7H5ClO | 详情 | 详情 |
(II) | 37460 | ethyl 4-(4-chlorophenyl)-4-oxobutanoate | C12H13ClO3 | 详情 | 详情 | |
(III) | 37461 | 4-(4-chlorophenyl)-4-oxobutyric acid | 3984-34-7 | C10H9ClO3 | 详情 | 详情 |
(IV) | 37462 | 4-(4-chlorophenyl)butyric acid | C10H11ClO2 | 详情 | 详情 | |
(V) | 37463 | 4-(4-chlorophenyl)-N-heptylbutanamide | C17H26ClNO | 详情 | 详情 | |
(VI) | 37464 | N-[4-(4-chlorophenyl)butyl]-1-heptanamine; N-[4-(4-chlorophenyl)butyl]-N-heptylamine | C17H28ClN | 详情 | 详情 | |
(VII) | 37465 | N-[4-(4-chlorophenyl)butyl]-N-heptylacetamide | C19H30ClNO | 详情 | 详情 | |
(VIII) | 37466 | N-[4-(4-chlorophenyl)butyl]-N-ethyl-N-heptylamine; N-[4-(4-chlorophenyl)butyl]-N-ethyl-1-heptanamine | C19H32ClN | 详情 | 详情 | |
(IX) | 37467 | N-[4-(4-chlorophenyl)butyl]-N,N-diethyl-1-heptanaminium bromide | C21H37BrClN | 详情 | 详情 | |
(X) | 37468 | N-[4-(4-chlorophenyl)butyl]-N,N-diethyl-1-heptanaminium hydroxide | C21H38ClNO | 详情 | 详情 | |
(C) | 19273 | acetyl chloride | 75-36-5 | C2H3ClO | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(III)The reaction of 4-neopentylbenzoic acid (I) with SOCl2 in refluxing dichloromethane gives the corresponding acid chloride (II) , which is condensed with heptylamine (III) in dichloromethane to yield 4-neopentyl-N-heptylbenzamide (IV). The reduction of (IV) with di(2-methoxyethoxy)sodium aluminum hydride in refluxing toluene affords 4-neopentyl-N-heptylbenzylamine (V), which is finally condensed with 2,4-difluorophenyl isocyanate (VI) in hexane. Compound (II) can also be obtained from neopentylbenzene (VII) and oxalyl chloride in the presence of aluminum chloride.
【1】 Schaffer, S.A.; Dutia, M.D.; Largis, E.E.; Katocs, A.S. Jr.; Bloom, J.D.; Wang, C.-H.; De Vries, V.G.; Potential antiatherosclerotic agents. 5. And acyl-. J Med Chem 1986, 29, 1131. |
【2】 De Vries, V.G. (American Cyanamid Co.); Antiatherosclerotic ureas and thioureas. BE 0900178; FR 2549473; GB 2149394; US 4623662 . |
【3】 Castaner, J.; Prous, J.; CL-277082. Drugs Fut 1987, 12, 6, 527. |
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) | 23250 | 4-neopentylbenzoic acid | C12H16O2 | 详情 | 详情 | |
(II) | 23251 | 4-neopentylbenzoyl chloride | C12H15ClO | 详情 | 详情 | |
(III) | 23252 | 1-heptanamine; heptylamine | 111-68-2 | C7H17N | 详情 | 详情 |
(IV) | 23253 | N-heptyl-4-neopentylbenzamide | C19H31NO | 详情 | 详情 | |
(V) | 23254 | N-(4-neopentylbenzyl)-1-heptanamine; N-heptyl-N-(4-neopentylbenzyl)amine | C19H33N | 详情 | 详情 | |
(VI) | 23255 | 2,4-difluorophenyl isocyanate; 2,4-difluoro-1-isocyanatobenzene | 59025-55-7 | C7H3F2NO | 详情 | 详情 |
(VII) | 28162 | 1-neopentylbenzene | 1007-26-7 | C11H16 | 详情 | 详情 |