• English
  • 简体中文
Login Register
Current Location: Home > Feedback Help Print

【结 构 式】

【分子编号】42940

【品名】[5-(4-acetyl-3-hydroxy-2-propylphenoxy)pentyl](triphenyl)phosphonium bromide

【CA登记号】

【 分 子 式 】C34H38BrO3P

【 分 子 量 】605.551682

【元素组成】C 67.44% H 6.33% Br 13.2% O 7.93% P 5.11%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(VII)

The condensation of 3-(trifluoromethyl)benzaldehyde (I) with phosphonate (II) by means of NaH in THF gives the unsaturated ester (III), which is reduced with DIBAL in ethyl ether / hexane, yielding 3-[3-(trifluoromethyl)phenyl]allyl alcohol (IV). The Sharpless asymmetric epoxidation of (IV) affords the epoxyalcohol (V), which is oxidized with pyridine·SO3 to the corresponding aldehyde and condensed with phosphorane (A) to provide the unsaturated epoxyaldehyde (VI). The condensation of aldehyde (VI) with the pentylphosphonium derivative (VII) by means of NaNH2 in THF gives the corresponding adduct (VIII). The addition of 4-oxo-7-sulfanyl-4H-1-benzopyran-2-carboxylic acid methyl ester (IX) to the epoxide group of (VIII) by means of Et3N in methanol yields the expected alpha-hydroxy thioether (X), which is finally hydrolyzed with NaOH in THF/water to afford the target sodium salt. The intermediate pentylphosphonium derivative (VII) has been obtained by selective alkylation of 2,4-dihydroxy-3-propylacetophenone (XI) with 1,5-dibromopentane (XII) followed by reaction of the resulting ether with triphenylphosphine in refluxing toluene.

1 Von Sprecher, A.; Beck, A.; Sallmann, A.; Breitenstein, W.; Wiestner, H.; Kimmel, S.; Anderson, G.P.; Subramanian, N.; Bray, M.A.; Peptidoleukotriene antagonists: Structural analogs of leukotriene D4 with special emphasis on CGP 45715A. Drugs Fut 1991, 16, 9, 827.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(A) 20110 2-(triphenylphosphoranyl)acetaldehyde C20H19OP 详情 详情
(I) 35964 3-(trifluoromethyl)benzaldehyde 454-89-7 C8H5F3O 详情 详情
(II) 10019 Ethyl 2-(diethoxyphosphoryl)acetate; Triethyl phosphonoacetate 867-13-0 C8H17O5P 详情 详情
(III) 42936 ethyl (E)-3-[3-(trifluoromethyl)phenyl]-2-propenoate 113048-68-3 C12H11F3O2 详情 详情
(IV) 42937 (E)-3-[3-(trifluoromethyl)phenyl]-2-propen-1-ol C10H9F3O 详情 详情
(V) 42938 [(2S,3R)-3-[3-(trifluoromethyl)phenyl]oxiranyl]methanol C10H9F3O2 详情 详情
(VI) 42939 (E)-3-[(2S,3R)-3-[3-(trifluoromethyl)phenyl]oxiranyl]-2-propenal C12H9F3O2 详情 详情
(VII) 42940 [5-(4-acetyl-3-hydroxy-2-propylphenoxy)pentyl](triphenyl)phosphonium bromide C34H38BrO3P 详情 详情
(VIII) 42941 1-[2-hydroxy-3-propyl-4-[((5Z,7E)-8-[(2S,3R)-3-[3-(trifluoromethyl)phenyl]oxiranyl]-5,7-octadienyl)oxy]phenyl]-1-ethanone C28H31F3O4 详情 详情
(IX) 42942 methyl 4-oxo-7-sulfanyl-4H-chromene-2-carboxylate C11H8O4S 详情 详情
(X) 42943 methyl 7-[((1S,2E,4Z)-9-(4-acetyl-3-hydroxy-2-propylphenoxy)-1-[(R)-hydroxy[3-(trifluoromethyl)phenyl]methyl]-2,4-nonadienyl)sulfanyl]-4-oxo-4H-chromene-2-carboxylate C39H39F3O8S 详情 详情
(XI) 13137 2',4'-Dihydroxy-3'-propylacetophenone; 1-(2,4-Dihydroxy-3-propylphenyl)-1-ethanone 40786-69-4 C11H14O3 详情 详情
(XII) 30560 1,5-dibromopentane 111-24-0 C5H10Br2 详情 详情
Extended Information