【结 构 式】 |
【分子编号】38898 【品名】4-nitrophenylhydrosulfide; 4-nitrobenzenethiol 【CA登记号】1849-36-1 |
【 分 子 式 】C6H5NO2S 【 分 子 量 】155.17724 【元素组成】C 46.44% H 3.25% N 9.03% O 20.62% S 20.66% |
合成路线1
该中间体在本合成路线中的序号:(XI)The reaction of 1,2:5,6-di-O-isopropylidene-alpha-D-glucofuranose (I) with methanesulfonyl chloride and pyridine gives the mesylate (II), which by treatment with sodium azide in DMF is converted into 3-azido-3-deoxy-1,2:5,6-di-O-isopropylidene-alpha-D-glucofuranose (III). Selective hydrolysis of (III) with 1N HCl in ethanol affords 3-azido-3-deoxy-1,2-O-isopropylidene-alpha-D-glucofuranose (IV) (1), which is oxidized with sodium metaperiodate to the aldehyde (V). The reduction of (V) with NaBH4 in EtOH gives 3-azido-3-deoxy-1,2-O-isopropylidene-alpha-D-xylofuranose (VI), which is treated with tosyl chloride and pyridine to yield the corresponding 5-O-tosylate (VII) (2). The reaction of (VII) with potassium thiobenzoate (VIII) in hot DMF gives 3-azido-5-S-benzoyl-3-deoxy-1,2-O-isopropylidene-5-thio-alpha-D-xylofuranose (IX), which is treated successively with NaOMe in methanol, to induce cyclization, with refluxing HCl in methanol, to eliminate the isopropylidene group, and finally with acetic anhydride to furnish 1,2,4-tri-O-acetyl-3-azido-3-deoxy-5-thio-D-xylopyranose (X). The condensation of (X) with 4-nitrothiophenol (XI) by means of trimethylsilyl triflate in dichloromethane yields the corresponding acylated dithiopyranoside, which is finally deacetylated with sodium methoxide in methanol.
【1】 Meyer, W.; Synthese der 3-Amino-3-desoxy- und 3,6-Diamino-3,6-didesoxy-D-glucose. Chem Ber 1968, 101, 11, 3802-07. |
【2】 Kuzuhara, H.; Ohrui, H.; Emoto, S.; Conversion of D-Glucose into d-Oxybiotin. Part I. Synthesis of 2,5-anhydro-3-azido-3-deoxy-D-xylose dimethyl acetal. Agr Biol Chem 1970, 34, 3, 375-380. |
【3】 Kovácsné Bozó, E.; Kuszmann, J.; Szabó, G.; Boros, S.; Moravcsik, I. (Gedeon Richter Ltd.); Novel anticoagulant glycosides and pharmaceutical compsns. thereof. EP 0907656; WO 9749716 . |
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) | 29141 | (3aR,5S,6S,6aR)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-ol | 582-52-5 | C12H20O6 | 详情 | 详情 |
(II) | 38930 | (3aR,5R,6R,6aR)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-6-[[methyl(dimethylene)-lambda(6)-sulfanyl]oxy]tetrahydrofuro[2,3-d][1,3]dioxole | C15H26O6S | 详情 | 详情 | |
(III) | 38931 | (3aR,5S,6S,6aR)-6-azido-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxole; (3aR,5S,6S,6aR)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-yl azide | C12H19N3O5 | 详情 | 详情 | |
(IV) | 38932 | (1R)-1-[(3aR,5S,6S,6aR)-6-azido-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl]-1,2-ethanediol | C9H15N3O5 | 详情 | 详情 | |
(V) | 38933 | (3aR,5S,6S,6aR)-6-azido-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxole-5-carbaldehyde | C8H11N3O4 | 详情 | 详情 | |
(VI) | 38934 | [(3aR,5S,6S,6aR)-6-azido-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl]methanol | C8H13N3O4 | 详情 | 详情 | |
(VII) | 38935 | [(3aR,5S,6S,6aR)-6-azido-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl]methyl 4-methylbenzenesulfonate | C15H19N3O6S | 详情 | 详情 | |
(VIII) | 38936 | potassium benzenecarbothioate | C7H5KOS | 详情 | 详情 | |
(IX) | 38937 | S-[[(3aR,5S,6S,6aR)-6-azido-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl]methyl] benzenecarbothioate | C15H17N3O4S | 详情 | 详情 | |
(X) | 38938 | (2R,3R,4S,5S)-2,5-bis(acetoxy)-4-azidotetrahydro-2H-thiopyran-3-yl acetate | C11H15N3O6S | 详情 | 详情 | |
(XI) | 38898 | 4-nitrophenylhydrosulfide; 4-nitrobenzenethiol | 1849-36-1 | C6H5NO2S | 详情 | 详情 |
(XII) | 38939 | (2S,3R,4S,5S)-5-(acetoxy)-4-azido-2-[(4-nitrophenyl)sulfanyl]tetrahydro-2H-thiopyran-3-yl acetate | C15H16N4O6S2 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(VII)The thiobenzoylation of the readily available 2,3-O-isopropylidene-5-O-tosyl-L-arabinose diethyl dithioacetal (I) gives the 5-S-thiobenzoate (II), which is treated with HgO and BF3/Et2O in THF/water gives the corresponding aldehyde (III). The cyclization of (III) with NaOMe in methanol affords the cyclic arabinopyranose (IV), which is deprotected with AcOH giving 5-O-benzoyl-beta-D-arabinopyranose (V). The acetylation of (V) with Ac2O yields the triacetate (VI), which is condensed with 4-nitrothiophenol (VII) by means of K2CO3 in refluxing acetone affording the acylated dithio-beta-D-arabinopyranoside (VIII). Finally, this compound is deacylated with NaOMe in MeOH.
【1】 Bozo, E.; Boros, S.; Kuszmann, J.; Synthesis of 4-cyanophenyl and 4-nitrophenyl 1,5-dithio-L- and -D-arabinopyranosides possessing antithrombotic activity. Carbohydr Res 1998, 311, 4, 191. |
【2】 Szeker, G.; Boros, S.; Szabó, G.; Turuczné Ferwagner, M.; Orbán, O.; Feher, B.; Soukupné Kedves, R.; Kenyeres, L.; Kovácsné Bozó, E.; Barabás, É.; Moravcsik, I.; Kaszás, E.; Kuszmann, J. (Gedeon Richter Ltd.); Novel anticoagulant glycosides and pharmaceutical compsns. thereof. WO 9928312 . |
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) | 38892 | (2S)-2-[(4S,5R)-5-[bis(ethylsulfanyl)methyl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-hydroxyethyl 4-methylbenzenesulfonate | C19H30O6S3 | 详情 | 详情 | |
(II) | 38893 | S-((2R)-2-[(4S,5R)-5-[bis(ethylsulfanyl)methyl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-hydroxyethyl) benzenecarbothioate | C19H28O4S3 | 详情 | 详情 | |
(III) | 38894 | S-[(2R)-2-[(4S,5R)-5-formyl-2,2-dimethyl-1,3-dioxolan-4-yl]-2-hydroxyethyl] benzenecarbothioate | C15H18O5S | 详情 | 详情 | |
(IV) | 38895 | (3aR,4R,7R,7aR)-4-hydroxy-2,2-dimethyltetrahydro-4H-thiopyrano[3,4-d][1,3]dioxol-7-yl benzoate | C15H18O5S | 详情 | 详情 | |
(V) | 38896 | (3R,4R,5R,6R)-4,5,6-trihydroxytetrahydro-2H-thiopyran-3-yl benzoate | C12H14O5S | 详情 | 详情 | |
(VI) | 38897 | (3R,4R,5R,6R)-4,5,6-tris(acetoxy)tetrahydro-2H-thiopyran-3-yl benzoate | C18H20O8S | 详情 | 详情 | |
(VII) | 38898 | 4-nitrophenylhydrosulfide; 4-nitrobenzenethiol | 1849-36-1 | C6H5NO2S | 详情 | 详情 |
(VIII) | 38899 | (3R,4R,5R,6S)-4,5-bis(acetoxy)-6-[(4-nitrophenyl)sulfanyl]tetrahydro-2H-thiopyran-3-yl benzoate | C22H21NO8S2 | 详情 | 详情 |