1-ethanesulfonic acid -Drug Synthesis Database

【结构式】

【分子编号】29169

【品名】1-ethanesulfonic acid

【CA登记号】594-45-6

【分子式】C₂H₆O₃S

【分子量】110.13384

【元素组成】C 21.81% H 5.49% O 43.58% S 29.12%

与该中间体有关的原料药合成路线共 2 条

合成路线1 合成路线2

合成路线1

该中间体在本合成路线中的序号：(X)

The reaction of 2-chloro-4-fluorosulfonylbenzyl bromide (I) with triphenylphosphine (II) in refluxing benzene gives the corresponding triphenylphosphonium bromide (III), which is submitted to a Wittig condensation with 2-chloro-4-nitrocinnamaldehyde (IV) [prepared by an aldol condensation of 2-chloro-4-nitrobenzaldehyde (V) and acetaldehyde (VI)] yielding 1-(4-fluorosulfonyl-2-chlorophenyl)-4-(2-chloro-4-nitrophenyl)butadiene (VII). The reduction of (VII) with H2 over PtO2 in methoxyethanol affords 1-(4-fluorosulfonyl-2-chlorophenyl)-4-(2-chloro-4-aminophenyl)butane (VIII), which is finally cyclized with cyanoguanidine (IX) and acetone and treated with ethanesultonic acid.

参考文献中间体

合成目标

【1】 Vermeulen, N.M.J.; Baker, B.R.; Irreversible enzyme inhibitors. CLXXVII. Active-site-directed irreversible inhibitos of dihydrofolate reductase derived from 4,6-diamino-1,2-dihydro-2,2-dimethyl-1-(phenylalkylphenyl)-s-triazines. J Med Chem 1970, 13, 6, 1154-60.
【2】 Blancafort, P.; Serradell, M.N.; Castaner, J.; Hillier, K.; NSC-127,755. Drugs Fut 1983, 8, 7, 596.

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)	36142	4-(bromomethyl)-3-chlorobenzenesulfonyl fluoride		C₇H₅BrClFO₂S	详情	详情
(III)	36143	[2-chloro-4-(fluorosulfonyl)benzyl](triphenyl)phosphonium bromide		C₂₅H₂₀BrClFO₂PS	详情	详情
(IV)	36144	(E)-3-(2-chloro-4-nitrophenyl)-2-propenal		C₉H₆ClNO₃	详情	详情
(V)	36145	2-chloro-4-nitrobenzaldehyde		C₇H₄ClNO₃	详情	详情
(VI)	11974	Acetaldehyde	75-07-0	C₂H₄O	详情	详情
(VII)	36146	4-[(1E,3E)-4-(4-amino-2-chlorophenyl)-1,3-butadienyl]-3-chlorobenzenesulfonyl fluoride		C₁₆H₁₂Cl₂FNO₂S	详情	详情
(VIII)	36147	4-[4-(4-amino-2-chlorophenyl)butyl]-3-chlorobenzenesulfonyl fluoride		C₁₆H₁₆Cl₂FNO₂S	详情	详情
(IX)	23611	N-cyanoguanidine	461-58-5	C₂H₄N₄	详情	详情
(X)	29169	1-ethanesulfonic acid	594-45-6	C₂H₆O₃S	详情	详情

合成路线2

该中间体在本合成路线中的序号：(B)

The acetylation of 4-hydroxymethyl-1,3-dioxolane (XII) gives the corresponding acetate (XIII), which by reaction with acetic anhydride and ZnCl2 is converted to 1,3-diacetoxy-2-(acetoxymethoxy)propane (XIV). The condensation of (XIV) with diacetylguanine (VI) by means of ethanesulfonic acid (B) yields the triacetoxy precursor (XV), which is hydrolyzed with aqueous methylamine.

参考文献中间体

合成目标

【1】 Field, A.K.; Tolman, R.L.; Ashton, W.A.; Karkas, J.D.; Activation by thymidine kinase and potent antiherpetic activity of 2'-nor-2'-deoxyguanosine (2'NDG). Biochem Biophys Res Commun 1982, 108, 4, 1716.
【2】 Galloway, K.S.; Radatus, B.K.; Kennell, W.L.; Smith, K.O.; Ogilvie, K.K.; A new nucleoside analog, 9-[(2-hydroxy-1-(hydroxymethyl)ethoxy)methyl]guanine, highly active in vitro aganist herpes simplex virus types 1 and 2. Antimicrob Agents Chemother 1982, 22, 1, 55-61.
【3】 Pento, J.T.; Serradell, M.N.; Castaner, J.; BIOLF-62. Drugs Fut 1985, 10, 5, 365.

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)	19273	acetyl chloride	75-36-5	C₂H₃ClO	详情	详情
(B)	29169	1-ethanesulfonic acid	594-45-6	C₂H₆O₃S	详情	详情
(VI)	29161	N-(9-acetyl-6-oxo-6,9-dihydro-1H-purin-2-yl)acetamide; N2,9-Diacetylguanine	3056-33-5	C₉H₉N₅O₃	详情	详情
(XII)	29166	1,3-dioxolan-4-ylmethanol	4740-78-7	C₄H₈O₃	详情	详情
(XIII)	29167	1,3-dioxolan-4-ylmethyl acetate		C₆H₁₀O₄	详情	详情
(XIV)	29168	3-(acetoxy)-2-[(acetoxy)methoxy]propyl acetate		C₁₀H₁₆O₇	详情	详情
(XV)	29170	2-[[2-(acetamido)-6-oxo-1,6-dihydro-9H-purin-9-yl]methoxy]-3-(acetoxy)propyl acetate		C₁₅H₁₉N₅O₇	详情	详情

Extended Information