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【结 构 式】

【药物名称】

【化学名称】2-Deoxy-6-O-[2-deoxy-4-O-phosphono-3-O-[3(R)-(tetradecanoyloxy)tetradecanoyl]-2-[3(R)-(tetradecanoyloxy)tetradecanamido-beta-D-glucopyranosyl]-2-[3(R)-(tetradecanoyloxy)tetradecanamido]-D-glucopyranose triethylammonium salt

【CA登记号】220048-50-0, 220048-49-7 (free acid)

【 分 子 式 】C102H196N3O21P

【 分 子 量 】1831.68072

【开发单位】Corixa (Originator)

【药理作用】IMMUNOMODULATING AGENTS, Immunostimulants, Vaccine adjuvants

合成路线1

Acylation of amino alcohol (I) with (R)-3-(n-tetradecanoyloxy)tetradecanoic acid (II) employing 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide methiodide (EDC.MeI) provided amide (III). After hydroxyl group protection with 2,2,2-trichloroethyl chloroformate (A), the resulting acetonide (IV) was hydrolyzed with aqueous AcOH to give (V).

1 Sowell, C.G.; Johnson, D.A.; Keegan, D.S.; et al.; 3-O-Desacyl monophosphoryl lipid A derivatives: Synthesis and immunostimulant activities. J Med Chem 1999, 42, 22, 4640.
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) 13664 1,1,1-Trichloro-2-[(chlorocarbonyl)oxy]ethane; 2,2,2-Trichloroethyl chloroformate 17341-93-4 C3H2Cl4O2 详情 详情
(I) 16046 (4aR,6R,7R,8R,8aS)-7-amino-6-(benzyloxy)-2,2-dimethylhexahydropyrano[3,2-d][1,3]dioxin-8-ol C16H23NO5 详情 详情
(II) 40612 (3R)-3-(tetradecanoyloxy)tetradecanoic acid C28H54O4 详情 详情
(III) 40613 (1R)-1-(2-[[(4aR,6R,7R,8R,8aS)-6-(benzyloxy)-8-hydroxy-2,2-dimethylhexahydropyrano[3,2-d][1,3]dioxin-7-yl]amino]-2-oxoethyl)dodecyl myristate C44H75NO8 详情 详情
(IV) 40614 (1R)-1-[2-[((4aR,6R,7R,8R,8aR)-6-(benzyloxy)-2,2-dimethyl-8-[[(2,2,2-trichloroethoxy)carbonyl]oxy]hexahydropyrano[3,2-d][1,3]dioxin-7-yl)amino]-2-oxoethyl]dodecyl myristate C47H76Cl3NO10 详情 详情
(V) 40615 (1R)-1-[2-[((2R,3R,4R,5R,6R)-2-(benzyloxy)-5-hydroxy-6-(hydroxymethyl)-4-[[(2,2,2-trichloroethoxy)carbonyl]oxy]tetrahydro-2H-pyran-3-yl)amino]-2-oxoethyl]dodecyl myristate C44H72Cl3NO10 详情 详情

合成路线2

N-Protection of amino alcohol (VI) under Schotten-Baumann conditions with 2,2,2-trichloroethyl chloroformate (B) aforded carbamate (VII). Subsequent esterification of (VII) with acid (II) provided (VIII), which was followed by acetonide hydrolysis to give diol (IX). Selective protection of the primary hydroxyl of (IX) with 1,1-dimethyl-2,2,2-trichloroethyl chloroformate (C) furnished carbonate (X). Further phosphorylation of the free secondary hydroxyl of (X) with diphenylphosphoryl chloride (D) produced phosphate ester (XI). Conversion of the trimethylsily-ethyl glycoside (XI) into the desired glycosyl chloride (XII) was then accomplished by treatment with alpha,alpha-dichloromethyl methyl ether and ZnCl2.

1 Sowell, C.G.; Johnson, D.A.; Keegan, D.S.; et al.; 3-O-Desacyl monophosphoryl lipid A derivatives: Synthesis and immunostimulant activities. J Med Chem 1999, 42, 22, 4640.
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) 13664 1,1,1-Trichloro-2-[(chlorocarbonyl)oxy]ethane; 2,2,2-Trichloroethyl chloroformate 17341-93-4 C3H2Cl4O2 详情 详情
(D) 16074 Diphenyl phosphoryl chloride; 1,1'-Diphenylphosphoryl chloride; Chlorodiphenyl Phosphate; Diphenyl chlorophosphate; Diphenylchlorophosphate 2524-64-3 C12H10ClO3P 详情 详情
(II) 40612 (3R)-3-(tetradecanoyloxy)tetradecanoic acid C28H54O4 详情 详情
(VI) 39769 (4aR,6R,7R,8R,8aS)-7-amino-2,2-dimethyl-6-[2-(trimethylsilyl)ethoxy]hexahydropyrano[3,2-d][1,3]dioxin-8-ol C14H29NO5Si 详情 详情
(VII) 39770 2,2,2-trichloroethyl (4aR,6R,7R,8R,8aS)-8-hydroxy-2,2-dimethyl-6-[2-(trimethylsilyl)ethoxy]hexahydropyrano[3,2-d][1,3]dioxin-7-ylcarbamate C17H30Cl3NO7Si 详情 详情
(VIII) 39772 (4aR,6R,7R,8R,8aR)-2,2-dimethyl-7-[[(2,2,2-trichloroethoxy)carbonyl]amino]-6-[2-(trimethylsilyl)ethoxy]hexahydropyrano[3,2-d][1,3]dioxin-8-yl (3R)-3-(tetradecanoyloxy)tetradecanoate C45H82Cl3NO10Si 详情 详情
(IX) 39773 (2R,3R,4R,5R,6R)-3-hydroxy-2-(hydroxymethyl)-5-[[(2,2,2-trichloroethoxy)carbonyl]amino]-6-[2-(trimethylsilyl)ethoxy]tetrahydro-2H-pyran-4-yl (3R)-3-(tetradecanoyloxy)tetradecanoate C42H78Cl3NO10Si 详情 详情
(X) 39774 (2R,3R,4R,5R,6R)-3-hydroxy-2-([[(2,2,2-trichloro-1,1-dimethylethoxy)carbonyl]oxy]methyl)-5-[[(2,2,2-trichloroethoxy)carbonyl]amino]-6-[2-(trimethylsilyl)ethoxy]tetrahydro-2H-pyran-4-yl (3R)-3-(tetradecanoyloxy)tetradecanoate C47H83Cl6NO12Si 详情 详情
(XI) 39775 (2R,3R,4R,5R,6R)-3-[(diphenoxyphosphoryl)oxy]-2-([[(2,2,2-trichloro-1,1-dimethylethoxy)carbonyl]oxy]methyl)-5-[[(2,2,2-trichloroethoxy)carbonyl]amino]-6-[2-(trimethylsilyl)ethoxy]tetrahydro-2H-pyran-4-yl (3R)-3-(tetradecanoyloxy)tetradecanoate C59H92Cl6NO15PSi 详情 详情
(XII) 40616 (2R,3R,4R,5S,6R)-2-chloro-5-[(diphenoxyphosphoryl)oxy]-6-([[(2,2,2-trichloro-1,1-dimethylethoxy)carbonyl]oxy]methyl)-3-[[(2,2,2-trichloroethoxy)carbonyl]amino]tetrahydro-2H-pyran-4-yl (3R)-3-(tetradecanoyloxy)tetradecanoate C54H79Cl7NO14P 详情 详情
(C) 38221 1,1,1-trichloro-2-[(chlorocarbonyl)oxy]-2-methylpropane C5H6Cl4O2 详情 详情

合成路线3

Coupling of glycosyl chloride (XII) with glycoside (V) in the presence of silver triflate gave rise to the corresponding beta-disaccharide and subsequent reductive cleavage of the trichloro ethyl-based protecting groups with Zn/AcOH yielded disaccharide (XIII). Further N-acylation of (XIII) with acid (II) in the presence of 2-ethoxy-1-(ethoxycarbonyl)-1,2-dihydroquinoline (EEDQ) furnished amide (XIV). Finally, two-step hydrogenolytic deprotection of the benzyl and phenyl groups of (XIV) and lyophilization in the presence of triethylamine provided the title compound.

1 Sowell, C.G.; Johnson, D.A.; Keegan, D.S.; et al.; 3-O-Desacyl monophosphoryl lipid A derivatives: Synthesis and immunostimulant activities. J Med Chem 1999, 42, 22, 4640.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(II) 40612 (3R)-3-(tetradecanoyloxy)tetradecanoic acid C28H54O4 详情 详情
(V) 40615 (1R)-1-[2-[((2R,3R,4R,5R,6R)-2-(benzyloxy)-5-hydroxy-6-(hydroxymethyl)-4-[[(2,2,2-trichloroethoxy)carbonyl]oxy]tetrahydro-2H-pyran-3-yl)amino]-2-oxoethyl]dodecyl myristate C44H72Cl3NO10 详情 详情
(XII) 40616 (2R,3R,4R,5S,6R)-2-chloro-5-[(diphenoxyphosphoryl)oxy]-6-([[(2,2,2-trichloro-1,1-dimethylethoxy)carbonyl]oxy]methyl)-3-[[(2,2,2-trichloroethoxy)carbonyl]amino]tetrahydro-2H-pyran-4-yl (3R)-3-(tetradecanoyloxy)tetradecanoate C54H79Cl7NO14P 详情 详情
(XIII) 40617   C87H143N2O18P 详情 详情
(XIV) 40618   C115H195N2O21P 详情 详情

合成路线4

In a related procedure for the synthesis of the protected precursor (XIV), the known bis(trichloroethoxycarbonyl) derivative (XV) was coupled with glycosyl chloride (XII) to give the corresponding disaccharide which was deprotected to (XVI) upon treatment with Zn/AcOH. Bis N-acylation of (XV) with acid (II) in the presence of EEDQ then provided the target intermediate (XIV).

1 Sowell, C.G.; Johnson, D.A.; Keegan, D.S.; et al.; 3-O-Desacyl monophosphoryl lipid A derivatives: Synthesis and immunostimulant activities. J Med Chem 1999, 42, 22, 4640.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(II) 40612 (3R)-3-(tetradecanoyloxy)tetradecanoic acid C28H54O4 详情 详情
(XII) 40616 (2R,3R,4R,5S,6R)-2-chloro-5-[(diphenoxyphosphoryl)oxy]-6-([[(2,2,2-trichloro-1,1-dimethylethoxy)carbonyl]oxy]methyl)-3-[[(2,2,2-trichloroethoxy)carbonyl]amino]tetrahydro-2H-pyran-4-yl (3R)-3-(tetradecanoyloxy)tetradecanoate C54H79Cl7NO14P 详情 详情
(XIV) 40618   C115H195N2O21P 详情 详情
(XV) 40619 (2R,3R,4R,5R,6R)-2-(benzyloxy)-5-hydroxy-6-(hydroxymethyl)-3-[[(2,2,2-trichloroethoxy)carbonyl]amino]tetrahydro-2H-pyran-4-yl 2,2,2-trichloroethyl carbonate C19H21Cl6NO9 详情 详情
(XVI) 40620 (2R,3R,4R,5R,6R)-3-amino-2-[[(2R,3S,4R,5R,6R)-5-amino-6-(benzyloxy)-3,4-dihydroxytetrahydro-2H-pyran-2-yl]methoxy]-5-[(diphenoxyphosphoryl)oxy]-6-(hydroxymethyl)tetrahydro-2H-pyran-4-yl (3R)-3-(tetradecanoyloxy)tetradecanoate C59H91N2O15P 详情 详情
Extended Information