【结 构 式】 |
【分子编号】46012 【品名】4-[3-[2,6-dimethyl-4-thioxo-1(4H)-pyridinyl]propyl]-4-methylmorpholin-4-ium iodide 【CA登记号】 |
【 分 子 式 】C15H25IN2OS 【 分 子 量 】408.34685 【元素组成】C 44.12% H 6.17% I 31.08% N 6.86% O 3.92% S 7.85% |
合成路线1
该中间体在本合成路线中的序号:(VII)N-(3-Aminopropyl)morpholine (I) was protected as the N-Boc derivative (II) and then quaternized with iodomethane to produce the ammonium salt (III). Subsequent acid deprotection of (III) gave amine (IV). Treatment of 2,6-dimethyl-4-pyrone (V) with Lawesson’s reagent in toluene yielded the thiono derivative (VI), which was coupled with amine (IV) to afford the pyridine thione (VII).
【1】 Singh, J.; et al.; A practical synthesis of an anti-methicillin resistant Staphylococcus aureus cephalosporin BMS-247243. Org Process Res Dev 2000, 4, 6, 488. |
【2】 Kim, O.; et al.; Discovery, synthesis and SAR of BMS-247243, a novel cephalosporin active against methicillin-resistant Staphylococcus aureus (MRSA) and susceptible Staphylococcus aureus (MSSA). 40th Intersci Conf Antimicrob Agents Chemother (Sept 17 2000, Toronto) 2000, Abst F-1062. |
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) | 25440 | 3-(4-morpholinyl)-1-propanamine | 123-00-2 | C7H16N2O | 详情 | 详情 |
(II) | 46007 | tert-butyl 3-(4-morpholinyl)propylcarbamate | C12H24N2O3 | 详情 | 详情 | |
(III) | 46008 | 4-[3-[(tert-butoxycarbonyl)amino]propyl]-4-methylmorpholin-4-ium iodide | C13H27IN2O3 | 详情 | 详情 | |
(IV) | 46009 | 4-(3-aminopropyl)-4-methylmorpholin-4-ium iodide | C8H19IN2O | 详情 | 详情 | |
(V) | 46010 | 2,6-dimethyl-4H-pyran-4-one | 1004-36-0 | C7H8O2 | 详情 | 详情 |
(VI) | 46011 | 2,6-dimethyl-4H-pyran-4-thione | C7H8OS | 详情 | 详情 | |
(VII) | 46012 | 4-[3-[2,6-dimethyl-4-thioxo-1(4H)-pyridinyl]propyl]-4-methylmorpholin-4-ium iodide | C15H25IN2OS | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(VII)Acylation of the cephem nucleus (XX) with the intermediate acid (XVI) via activation with either DCC or the Vilsmeier reagent provided amide (XXI). The ester groups of (XXI) were then cleaved with trifluoroacetic acid to give acid (XXII). Finally, condensation of (XXII) with pyridine thione (VII) furnished the title compound.
【1】 Singh, J.; et al.; A practical synthesis of an anti-methicillin resistant Staphylococcus aureus cephalosporin BMS-247243. Org Process Res Dev 2000, 4, 6, 488. |
【3】 Springer, D.M.; Luh, B.Y.; D'Andrea, S.V.; Hudyma, T.W.; Kim, O.K. (Bristol-Myers Squibb Co.); Cephalosporin derivs.. EP 0966472; WO 9823621 . |
【2】 Kim, O.; et al.; Discovery, synthesis and SAR of BMS-247243, a novel cephalosporin active against methicillin-resistant Staphylococcus aureus (MRSA) and susceptible Staphylococcus aureus (MSSA). 40th Intersci Conf Antimicrob Agents Chemother (Sept 17 2000, Toronto) 2000, Abst F-1062. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(VII) | 46012 | 4-[3-[2,6-dimethyl-4-thioxo-1(4H)-pyridinyl]propyl]-4-methylmorpholin-4-ium iodide | C15H25IN2OS | 详情 | 详情 | |
(XVI) | 46020 | 2-[[4-((E)-3-[[2-(tert-butoxy)-2-oxoethyl]amino]-3-oxo-1-propenyl)-2,5-dichlorophenyl]sulfanyl]acetic acid | C17H19Cl2NO5S | 详情 | 详情 | |
(XX) | 31135 | benzhydryl (6R,7R)-7-amino-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate | C21H19ClN2O3S | 详情 | 详情 | |
(XXI) | 46023 | benzhydryl (6R,7R)-7-[(2-[[4-((E)-3-[[2-(tert-butoxy)-2-oxoethyl]amino]-3-oxo-1-propenyl)-2,5-dichlorophenyl]sulfanyl]acetyl)amino]-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate | C38H36Cl3N3O7S2 | 详情 | 详情 | |
(XXII) | 46024 | (6R,7R)-7-([2-[(4-[(E)-3-[(carboxymethyl)amino]-3-oxo-1-propenyl]-2,5-dichlorophenyl)sulfanyl]acetyl]amino)-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid | C21H18Cl3N3O7S2 | 详情 | 详情 |