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【结 构 式】

【分子编号】11327

【品名】ethyl 2-(hydroxymethyl)acrylate

【CA登记号】10029-04-6

【 分 子 式 】C6H10O3

【 分 子 量 】130.1436

【元素组成】C 55.37% H 7.74% O 36.88%

与该中间体有关的原料药合成路线共 3 条

合成路线1

该中间体在本合成路线中的序号:(I)

An improved synthesis of ilmofosine has been reported: The reaction of 2-(hydroxymethyl)-2-propenoic acid ethyl ester (I) with PBr3 in ethyl ether gives the corresponding 2-bromomethyl derivative (II), which is condensed with hexadecylthiol (III) by means of triethylamine to afford 2-(hexadecylsulfanyl)-2-propenoic acid ethyl ester (IV). The reduction of (IV) with diisobutylaluminum hydride (DIBAL) yields 3-(hexadecylsulfanyl)-2-methylene-1-propanol (V), which is methylated with NaH and MeI to the methyl ether (VI). The hydroboration of (VI) with BH3.S(CH3)2 followed by oxidation with NaBO3 gives 3-(hexadecylsulfanyl)-2-(methoxymethyl)-1-propanol (VII), which is finally phosphorylated with PCl3 and condensed with choline p-toluenesulfonate (VIII).

1 Reddy, K.C.; Byun, H.S.; Bittman, R.; Antitumor ether lipids: An improved synthesis of ilmofosine and an enantioselective synthesis of an ilmofosine analog. Tetrahedron Lett 1994, 35, 17, 2679.
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) 11327 ethyl 2-(hydroxymethyl)acrylate 10029-04-6 C6H10O3 详情 详情
(II) 11328 ethyl 2-(bromomethyl)acrylate 17435-72-2 C6H9BrO2 详情 详情
(III) 41266 1-hexadecanethiol; hexadecylhydrosulfide 2917-26-2 C16H34S 详情 详情
(IV) 11329 ethyl 2-[(hexadecylsulfanyl)methyl]acrylate C22H42O2S 详情 详情
(V) 11330 2-[(Hexadecylsulfanyl)methyl]-2-propen-1-ol C20H40OS 详情 详情
(VI) 11331 2-[(Hexadecylsulfanyl)methyl]-2-propenyl methyl ether; 3-(Hexadecylsulfanyl)-2-(methoxymethyl)-1-propene C21H42OS 详情 详情
(VII) 11332 3-(Hexadecylsulfanyl)-2-(methoxymethyl)-1-propanol C21H44O2S 详情 详情
(VIII) 11333 N,N,N-Trimethyl-2-[(phenylsulfonyl)oxy]-1-ethanaminium chloride C11H18ClNO3S 详情 详情

合成路线2

该中间体在本合成路线中的序号:(I)

The reaction of 2-(hydroxymethyl)propenoic acid ethyl ester (I) with PBr3 and then with hexadecyl mercaptane (II) and TEA gives 2-(hexadecylsulfanylmethyl)propenoic acid methyl ester (III), which is reduced with DIBAL in THF to the corresponding carbinol (IV). The methylation of (IV) with methyl iodide and NaH in THF affords the methyl ether (V), which is hydroxylated at the double bond with BH3/Me2S and NaBO3 providing 3-(hexadecylsulfanyl)-2-(methoxymethyl)-1-propanol (VI). Finally this compound is treated with POCl3 and TEA in chloroform and condensed with choline tosylate (VII) to furnish the target phosphorylcholine derivative.

1 Bittman, R.; Lohmeyer, M.; Antitumor ether lipids and alkylphosphocholines. Drugs Fut 1994, 19, 11, 1021.
2 Reddy, K.C.; Byun, H.S.; Bittman, R.; Antitumor ether lipids: An improved synthesis of ilmofosine and an enantioselective synthesis of an ilmofosine analog. Tetrahedron Lett 1994, 35, 17, 2679.
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) 11327 ethyl 2-(hydroxymethyl)acrylate 10029-04-6 C6H10O3 详情 详情
(II) 41266 1-hexadecanethiol; hexadecylhydrosulfide 2917-26-2 C16H34S 详情 详情
(III) 11329 ethyl 2-[(hexadecylsulfanyl)methyl]acrylate C22H42O2S 详情 详情
(IV) 11330 2-[(Hexadecylsulfanyl)methyl]-2-propen-1-ol C20H40OS 详情 详情
(V) 11331 2-[(Hexadecylsulfanyl)methyl]-2-propenyl methyl ether; 3-(Hexadecylsulfanyl)-2-(methoxymethyl)-1-propene C21H42OS 详情 详情
(VI) 11332 3-(Hexadecylsulfanyl)-2-(methoxymethyl)-1-propanol C21H44O2S 详情 详情
(VII) 41265 2-hydroxy-N,N,N-trimethyl-1-ethanaminium 4-methylbenzenesulfonate C12H21NO4S 详情 详情

合成路线3

该中间体在本合成路线中的序号:(XLII)

Condensation of the bicyclic oxazoline (XV) with 2-(chloromethyl)acrylic acid ethyl ester (XLI) - obtained by treatment of the hydroxymethyl analogue (XLII) with SOCl2 - in dimethylacetamide gives the aduct (XLIII), which is treated first with hydroquinone and Na2CO3 in water and then with H2 over Pd/Al2O3 in the same solvent to provide 2,2'-anhydro-b-L-thymidine (XLIV). Reaction of compound (XLIV) with acetyl bromide in DMF/AcOEt yields 2'-bromo-3',5'-di-O-acetyl-b-L-thymidine (XLV), which is debrominated with H2 over Pd/Al2O3.to afford the 2'-deoxynucleoside (XLVI). Finally, this compound is deacetylated by means of NH3 in MeOH.

1 Sorbera, L.A.; Castañer, J.; Castañer, R.M.; Bayes, M.; Telbivudine. Drugs Fut 2003, 28, 9, 870.
2 Suzuki, T.; Iizuka, H.; Togashi, K. (Mitsui Chemicals, Inc.); L-Nucleic acid derivs. and processes for the synthesis thereof. EP 1348712; JP 2002241390; WO 0244194 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XV) 56918 (3aS,5S,6S,6aR)-5-(hydroxymethyl)-2-iminohexahydrofuro[2,3-d][1,3]oxazol-6-ol C6H10N2O4 详情 详情
(XLI) 62924 ethyl 2-(chloromethyl)acrylate C6H9ClO2 详情 详情
(XLII) 11327 ethyl 2-(hydroxymethyl)acrylate 10029-04-6 C6H10O3 详情 详情
(XLIII) 62923 ethyl 2-{[(3aS,5S,6S,6aR)-6-hydroxy-5-(hydroxymethyl)-2-iminotetrahydrofuro[2,3-d][1,3]oxazol-3(2H)-yl]methyl}acrylate C12H18N2O6 详情 详情
(XLIV) 62927 (2S,3S,3aR,9aS)-3-hydroxy-2-(hydroxymethyl)-7-methyl-2,3,3a,9a-tetrahydro-6H-furo[2',3':4,5][1,3]oxazolo[3,2-a]pyrimidin-6-one C10H12N2O5 详情 详情
(XLV) 12213 [(2R,3R,4R,5R)-3-(acetoxy)-4-bromo-5-[5-methyl-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl]tetrahydro-2-furanyl]methyl acetate C14H17BrN2O7 详情 详情
(XLVI) 62928 {(2S,3R,5S)-3-(acetyloxy)-5-[5-methyl-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl]tetrahydro-2-furanyl}methyl acetate C14H18N2O7 详情 详情
Extended Information