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

【结 构 式】

【分子编号】10381

【品名】2-[Benzyl(2-hydroxyethyl)amino]-6-propyl-1-nonanol

【CA登记号】

【 分 子 式 】C21H37NO2

【 分 子 量 】335.53032

【元素组成】C 75.17% H 11.11% N 4.17% O 9.54%

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:(III)

Delmopinol can be obtained by three different ways: 1) The reaction of 2-(benzylamino)-6-propylnonan-1-ol (I) with ethylene oxide (II) in ethanol at 100 C yields the corresponding N-(2-hydroxyethyl)derivative (III), which is cyclized with H2SO4 at 140-150 C to 4-benzyl-3-(4-propylheptyl)morpholine (IV). The debenzylation of (IV) by hydrogenolysis with H2 over Pd/C affords the free morpholine (V), which is finally condensed with 2-chloroethanol (VI) by means of KI and KOH in refluxing ethanol. 2) The Grignard condensation of 4-heptanone (VII) with allyl bromide (VIII) in ethyl ether gives 4-propyl-1-hepten-4-ol (IX), which is cyclocondensed with morpholine (X) by means of H2O2 and Na2WO4 in methanol to yield 4-(perhydroisoxazol[3,2-c][1,4]oxazin-2-ylmethyl)-4-heptanol (XI). Reductive ring opening of (XI) by hydrogenation with H2 over Pd/C and p-toluenesulfonic acid in isopropanol affords a mixture of the morpholine (V) and the hydroxymorpholine (XII). This mixture, without separation, is treated first with SOCl2 in chloroform to perform Cl-OH interchange, then with NaOH to obtain the corresponding double bond, and finally, the mixture is hydrogenated with H2 over Ra-nickel and triethylamine in dioxane in order to obtain pure (V), already obtained. 3) The acylation of the alkylmorpholine (V) with oxalic acid monomethyl ester (XIII) by means of triethylamine in refluxing benzene gives the corresponding condensation compound (XIV), which is then reduced with LiAlH4 in refluxing ethyl ester.

1 Mealy, N.; Ngo, J.; Castaner, J.; Delmopinol Hydrochloride. Drugs Fut 1996, 21, 8, 787.
2 (Ferrosan AB); New morpholino cpds. their process of preparation and medicines containing them. BE 0888052; BE 0901496 .
3 Hernestam, S.; Thelin, B.; Seifert, E.; Nilsson, A. (Pharmacia & Upjohn AB); Substd. isoxazolidines and isoxazolines. WO 9014342 .
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) 10380 2-(Benzylamino)-6-propyl-1-nonanol C19H33NO 详情 详情
(II) 10393 Oxirane; Ethylene oxide 75-21-8 C2H4O 详情 详情
(III) 10381 2-[Benzyl(2-hydroxyethyl)amino]-6-propyl-1-nonanol C21H37NO2 详情 详情
(IV) 10382 4-Benzyl-3-(4-propylheptyl)morpholine C21H35NO 详情 详情
(V) 10383 3-(4-Propylheptyl)morpholine C14H29NO 详情 详情
(VI) 10384 2-Chloro-1-ethanol; Ethylene chlorohydrin 107-07-3 C2H5ClO 详情 详情
(VII) 10385 4-Heptanone; Dipropyl ketone 123-19-3 C7H14O 详情 详情
(VIII) 10386 Allyl(bromo)magnesium 1730-25-2 C3H5BrMg 详情 详情
(IX) 10387 4-Propyl-1-hepten-4-ol C10H20O 详情 详情
(X) 10388 Morpholine 110-91-8 C4H9NO 详情 详情
(XI) 10389 4-(Hexahydroisoxazolo[3,2-c][1,4]oxazin-2-ylmethyl)-4-heptanol C14H27NO3 详情 详情
(XII) 10390 1-(1,4-Oxazinan-3-yl)-4-propyl-2-heptanol C14H29NO2 详情 详情
(XIII) 10391 2-Methoxy-2-oxoacetic acid C3H4O4 详情 详情
(XIV) 10392 2-Oxo-2-[3-(4-propylheptyl)morpholino]acetic acid C16H29NO4 详情 详情
Extended Information