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【结 构 式】

【分子编号】13164

【品名】4-(2-Quinolinylmethoxy)phenol

【CA登记号】

【 分 子 式 】C16H13NO2

【 分 子 量 】251.28476

【元素组成】C 76.48% H 5.21% N 5.57% O 12.73%

与该中间体有关的原料药合成路线共 4 条

合成路线1

该中间体在本合成路线中的序号:(IV)

A synthesis of RG-12525 has been published: The reaction of 2-methylquinoline (I) with chlorine gas gives 2-(chloromethyl)quinoline (II), which is condensed with an excess of hydroquinone (III) yielding 4-(quinolin-2-ylmethoxy)phenol (IV). The reaction of (IV) with an excess of alpha,alpha'-dichloro-o-xylene (V) affords the monoaddition compound (VI), which is treated with sodium cyanide giving the phenylacetonitrile derivative (VII). Finally, this compound is submitted to cyclization with sodium azide.

1 Bridge, A.W.; et al.; The process development of RG 12525 (2-'{[4-(tetrazol-5-ylmethylphenyl)-methoxy]phenoxymethyl}quinoline). Org Process Res Dev 2001, 5, 1, 9.
2 O'Brien, M.; Sledeski, A.W.; Truesdale, L.K.; Approaches to p-hydroxyphenoxymethylquinolines which avoid intermediate chloromethylquinolines for the synthesis of the LTD4 antagonist, RG 12525. Tetrahedron Lett 1997, 38, 4, 509.
3 Huang, F.-C.; Galemmo Jr., R.A.; Campbell, H.F. (Aventis Pharma SA); Quinoline derivs. as antagonists of leukotriene D4, compsns. containing the same and processes for their preparation. EP 0348155; EP 0784052; US 4920131 .
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) 13161 Quinaldine; 2-Methylquinoline 91-63-4 C10H9N 详情 详情
(II) 13162 2-(Chloromethyl)quinoline; alpha-Chloroquinaldine 4377-41-7 C10H8ClN 详情 详情
(III) 13163 p-Dihydrobenzene; Hydroquinone 123-31-9 C6H6O2 详情 详情
(IV) 13164 4-(2-Quinolinylmethoxy)phenol C16H13NO2 详情 详情
(V) 13165 1,2-Bis(chloromethyl)benzene 612-12-4 C8H8Cl2 详情 详情
(VI) 13166 2-(Chloromethyl)benzyl 4-(2-quinolinylmethoxy)phenyl ether; 2-[(4-[[2-(Chloromethyl)benzyl]oxy]phenoxy)methyl]quinoline C24H20ClNO2 详情 详情
(VII) 13167 2-(2-[[4-(2-Quinolinylmethoxy)phenoxy]methyl]phenyl)acetonitrile C25H20N2O2 详情 详情

合成路线2

该中间体在本合成路线中的序号:(V)

Synthesis of intermediate 4-(2-quinolinylmethoxy)phenol (V): The oxidation of 2-methylquinoline with urea and H2O2 in dichloromethane gives the N-oxide (II), which is treated with TsCl and K2CO3 in acetonitrile to yield the tosylate (III). Finally this compound is condensed with an excess of hydroquinone by means of NaOH in methanol/acetonitrile to afford the target intermediate (V).

1 Sledeski, A.W.; et al.; A convergent synthesis of an LTD4 antagonist, RG12525. Tetrahedron Lett 1997, 38, 7, 1129.
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) 13161 Quinaldine; 2-Methylquinoline 91-63-4 C10H9N 详情 详情
(II) 43890 2-methyl-1-quinoliniumolate C10H9NO 详情 详情
(III) 43891 2-quinolinylmethyl 4-methylbenzenesulfonate C17H15NO3S 详情 详情
(IV) 13163 p-Dihydrobenzene; Hydroquinone 123-31-9 C6H6O2 详情 详情
(V) 13164 4-(2-Quinolinylmethoxy)phenol C16H13NO2 详情 详情

合成路线3

该中间体在本合成路线中的序号:(V)

Synthesis of the target compound 147690: This compound has been obtained by two similar ways: 1. The condensation of intermediate 4-(2-quinolinylmethoxy)phenol (V) with intermediate 5-[2-(bromomethyl)benzyl]-2-(triphenylmethyl)-2H-tetrazole (X) by means of KF/alumina in acetonitrile gives the adduct (XIII), which is finally deprotected to the target compound by means of HCl in methanol/THF. 2. The condensation of intermediate 4-(2-quinolinylmethoxy)phenol (V) with intermediate 5-[2-(bromomethyl)benzyl]-2-(tetrahydropyran-2-yl)-2H-tetrazole (XII) by means of KF/alumina in acetonitrile gives the adduct (XIV), which is finally deprotected to the target compound by means of HCl in methanol/THF.

1 Sledeski, A.W.; et al.; A convergent synthesis of an LTD4 antagonist, RG12525. Tetrahedron Lett 1997, 38, 7, 1129.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(V) 13164 4-(2-Quinolinylmethoxy)phenol C16H13NO2 详情 详情
(X) 43896 5-[2-(bromomethyl)benzyl]-2-trityl-2H-1,2,3,4-tetraazole C28H23BrN4 详情 详情
(XII) 43898 5-[2-(bromomethyl)benzyl]-2-tetrahydro-2H-pyran-2-yl-2H-1,2,3,4-tetraazole C14H17BrN4O 详情 详情
(XIII) 43899 4-(2-quinolinylmethoxy)phenyl 2-[(2-trityl-2H-1,2,3,4-tetraazol-5-yl)methyl]benzyl ether; 2-[[4-([2-[(2-trityl-2H-1,2,3,4-tetraazol-5-yl)methyl]benzyl]oxy)phenoxy]methyl]quinoline C44H35N5O2 详情 详情
(XIV) 43900 2-[[4-([2-[(2-tetrahydro-2H-pyran-2-yl-2H-1,2,3,4-tetraazol-5-yl)methyl]benzyl]oxy)phenoxy]methyl]quinoline; 4-(2-quinolinylmethoxy)phenyl 2-[(2-tetrahydro-2H-pyran-2-yl-2H-1,2,3,4-tetraazol-5-yl)methyl]benzyl ether C30H29N5O3 详情 详情

合成路线4

该中间体在本合成路线中的序号:(IV)

The condensation of 2-(chloromethyl)quinoline (I) with hydroquinone monobenzoate (II) by means of K2CO3 in refluxing acetone/DMF gives 4-(2-quinolylmethoxy)phenyl benzoate (III), which is treated with sodium ethoxide in ethanol to yield 4-(2-quinolylmethoxy)phenol (IV). The condensation of (IV) with alpha,alpha'-dichloro-o-xylene (V) by means of NaH in THF affords the benzyl chloride derivative (VI), which is treated with NaCN in toluene/water with a phase-transfer catalyst to provide the benzyl cyanide derivative (VII). Finally, this compound is cyclized with sodium azide in hot DMF to afford the target tetrazole derivative.

1 Huang, F.-C.; (2-Quinolinylmethoxy)phenyl-containing compounds as leukotriene receptor antagonists: A brief review of structure-activity relationships and the biological profile of RG 12525. Drugs Fut 1991, 16, 12, 1121.
2 Huang, F.-C.; et al.; Development of a novel series of (2-quinolinylmethoxy)phenyl-containing compounds as high-affinity leukotriene D4 receptor antagonists. 2. Effects of an additional phenyl ring on receptor affinity. J Med Chem 1990, 33, 4, 1194.
3 Youssefyeh, R.D.; et al.; Development of a novel series of (2-quinolinylmethoxy)phenyl-containing compounds as high-affinity leukotriene receptor antagonists. 1. Initial structure-activity relationships. J Med Chem 1990, 33, 4, 1186.
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) 13162 2-(Chloromethyl)quinoline; alpha-Chloroquinaldine 4377-41-7 C10H8ClN 详情 详情
(II) 44042 4-hydroxyphenyl benzoate C13H10O3 详情 详情
(III) 44043 4-(2-quinolinylmethoxy)phenyl benzoate C23H17NO3 详情 详情
(IV) 13164 4-(2-Quinolinylmethoxy)phenol C16H13NO2 详情 详情
(V) 13165 1,2-Bis(chloromethyl)benzene 612-12-4 C8H8Cl2 详情 详情
(VI) 13166 2-(Chloromethyl)benzyl 4-(2-quinolinylmethoxy)phenyl ether; 2-[(4-[[2-(Chloromethyl)benzyl]oxy]phenoxy)methyl]quinoline C24H20ClNO2 详情 详情
(VII) 13167 2-(2-[[4-(2-Quinolinylmethoxy)phenoxy]methyl]phenyl)acetonitrile C25H20N2O2 详情 详情
Extended Information