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【结 构 式】 
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【分子编号】29250 【品名】1-[(6aR,8R,9R,9aS)-9-hydroxy-2,2,4,4-tetraisopropyltetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-4-ethoxy-2(1H)-pyrimidinone 【CA登记号】 |
【 分 子 式 】C23H42N2O7Si2 【 分 子 量 】514.76676 【元素组成】C 53.67% H 8.22% N 5.44% O 21.76% Si 10.91% |
合成路线1
该中间体在本合成路线中的序号：(V)The acetylation of uridine (I) with acetic anhydride gives the 2',3',5'-triacetyl derivative (II), which is treated with SOCl2 and sodium ethoxide yielding the 4-ethoxypyrimidinone (III). The partial protection of (III) with 1,3-dichloro-1,1,3,3-tetraisopropyldisiloxane (IV) yields the silylated compound (V), which is oxidized with oxalyl chloride to the silylated furanone (VI). The reaction of (VI) with fluoromethyl phenyl sulfone (A) by means of diethyl chlorophosphate (B) and lithium hexamethyldisylazide in THF affords the fluorovinyl sulfone (VII) as a mixture of (E) and (Z) isomers that is separated by flash chromatography. The (Z)-isomer (VII) is treated with tributyl tin hydride and AIBN in refluxing benzene to give the fluorovinyl stannane (VIII), which is finally treated with CsF and NH3 in refluxing methanol to afford the target compound.
| 【1】 Sunkara, P.S.; McCarthy, J.R.; Matthews, D.P.; et al.; Design of a fluoro-olefin cytidine nucleoside as a bioprecursor of a mechanism-based inhibitor of ribonucleotide reductase. ACS Symp Ser 1996, 639, 246. |
| 【2】 McCarthy, J.R.; et al.; Stereospecific synthesis of 1-fluoro olefins via (fluorovinyl)stannanes and an unequivocal NMR method for the assignment of fluoro olefin geometry. Tetrahedron 1996, 52, 1, 45. |
| 【3】 Matthews, D.P.; et al.; Improved synthesis of (E)-2'-deoxy-2'-(fluoromethylene)cytidine - A potent inhibitor of ribonucleotide diphosphate reductase. Nucleosides Nucleotides 1993, 12, 2, 115. |
| 【4】 McCarthy, J.R.; Edwards, M.L.; Matthews, D.P. (Merrell Pharmaceuticals, Inc.); Novel 2'-halomethylidene, 2'-ethenylidene and 2'-ethynyl cytidine, uridine and guanosine derivs.. EP 0372268; JP 1990178272; US 5378693 . |
| 【5】 McCarthy, J.R.; Matthews, D.P.; Bitonti, A.J.; Edwards, M.L. (Merrell Pharmaceuticals, Inc.); Treatment of carcinoma by administration of 2'-halomethylidenyl-2'-deoxynucleosides. US 5607925 . |
| 【6】 McCarthy, J.R.; Matthews, D.P.; Edwards, M.L. (Merrell Pharmaceuticals, Inc.); 2'-Ethenylidene cytidine, uridine and guanosine derivs.. US 5616702 . |
| 【7】 McCarthy, J.R.; et al.; Stereospecific method to E and Z terminal fluoro olefins and its application to the synthesis of 2'-deoxy-2'-fluoromethylene nucleosides as potential inhibitors of ribonucleoside diphosphate reductase. J Am Chem Soc 1991, 113, 19, 7439. |
| 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) | 23623 | Chlorophosphoric acid ethyl ester；Phosphorochloridic acid diethyl ester；Diethyl chlorophosphate;diethyl phosphorochloridate | 814-49-3 | C4H10ClO3P | 详情 | 详情 |
| (A) | 29245 | (fluoromethyl)(dioxo)phenyl-lambda(6)-sulfane | 20808-12-2 | C7H7FO2S | 详情 | 详情 |
| (I) | 11996 | 1-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydro-2-furanyl]-2,4(1H,3H)-pyrimidinedione; Uridine | 58-96-8 | C9H12N2O6 | 详情 | 详情 |
| (II) | 29248 | (2R,3R,4R,5R)-4-(acetoxy)-2-[(acetoxy)methyl]-5-[2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl]tetrahydro-3-furanyl acetate | C15H18N2O9 | 详情 | 详情 | |
| (III) | 29249 | 1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-2-furanyl]-4-ethoxy-2(1H)-pyrimidinone | C11H16N2O6 | 详情 | 详情 | |
| (IV) | 29242 | 1,3-dichloro-1,1,3,3-tetraisopropyldisiloxane | 69304-37-6 | C12H28Cl2OSi2 | 详情 | 详情 |
| (V) | 29250 | 1-[(6aR,8R,9R,9aS)-9-hydroxy-2,2,4,4-tetraisopropyltetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-4-ethoxy-2(1H)-pyrimidinone | C23H42N2O7Si2 | 详情 | 详情 | |
| (VI) | 29251 | 1-[(6aR,8R,9aR)-2,2,4,4-tetraisopropyl-9-oxotetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-4-ethoxy-2(1H)-pyrimidinone | C23H40N2O7Si2 | 详情 | 详情 | |
| (VII) | 29252 | 1-[(6aR,8R,9aS)-9-[(Z)-fluoro(phenylsulfonyl)methylidene]-2,2,4,4-tetraisopropyldihydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8(8H)-yl]-4-ethoxy-2(1H)-pyrimidinone | C30H45FN2O8SSi2 | 详情 | 详情 | |
| (VIII) | 29253 | 1-[(6aR,8R,9aS)-9-[(Z)-fluoro(tributylstannyl)methylidene]-2,2,4,4-tetraisopropyldihydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8(8H)-yl]-4-ethoxy-2(1H)-pyrimidinone | C36H67FN2O6Si2Sn | 详情 | 详情 |