【结 构 式】 |
【分子编号】34273 【品名】N,N-bis(trimethylsilyl)amine; trimethyl-N-(trimethylsilyl)silanamine 【CA登记号】999-97-3 |
【 分 子 式 】C6H19NSi2 【 分 子 量 】161.3946 【元素组成】C 44.65% H 11.87% N 8.68% Si 34.8% |
合成路线1
该中间体在本合成路线中的序号:(A)Treatment of 2,4-dihydroxypyridine (I) with hexamethyldisilazane (A) gives 2,4-bis(trimethylsilyloxy)pyridine (II). Condensation of (II) with 2,3,5-tri-O-benzoyl-D-ribofuranosyl bromide (III) gives a 68% yield 2',3',5'-tri-O-benzoyl-3-deazauridine (IV). Deblocking of (IV) with alcoholic ammonia gives 3-deazauridine in 88% crude yield.
【1】 Currie, B.L.; et al.; Synthesis of 3-deazauridine-[4-hydoxy-1-(beta-D-ribofuranosyl)-2-pyridone]. Chem Commun 1968, 1547-48. |
【2】 Currie, B.L.; et al.; The synthesis of 3-deazapyrimidine nucleosides related to uridine and cytidine and their derivatives. J Heterocycl Chem 1970, 7, 323-329. |
【3】 Chang, P.; 3-Deazauridine. Drugs Fut 1984, 9, 10, 739. |
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) | 34273 | N,N-bis(trimethylsilyl)amine; trimethyl-N-(trimethylsilyl)silanamine | 999-97-3 | C6H19NSi2 | 详情 | 详情 |
(I) | 34269 | 2,4-pyridinediol | 626-03-9 | C5H5NO2 | 详情 | 详情 |
(II) | 34270 | trimethylsilyl 2-[(trimethylsilyl)oxy]-4-pyridinyl ether; 2,4-bis[(trimethylsilyl)oxy]pyridine | C11H21NO2Si2 | 详情 | 详情 | |
(III) | 34271 | benzyl (2R,3S,4R)-4-(benzyloxy)-2-[(benzyloxy)methyl]-5-bromotetrahydro-3-furanyl ether; (2R,3S,4R)-3,4-bis(benzyloxy)-2-[(benzyloxy)methyl]-5-bromotetrahydrofuran | C26H27BrO4 | 详情 | 详情 | |
(IV) | 34272 | 1-[(2R,3R,4S,5R)-3,4-bis(benzyloxy)-5-[(benzyloxy)methyl]tetrahydro-2-furanyl]-4-hydroxy-2(1H)-pyridinone | C31H31NO6 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:Coupling of 4-bromo-1-butene (I) with catecholborane (II) afforded the bromobutyl boronate (III). Subsequent exchange of (III) with alpha-pinanediol (IV) produced (V), which was regioselectively chlorinated to give (VI). Displacement of the chlorine atom of (VI) with lithium hexamethyldisilazide, followed by acid treatment furnished intermediate (VII).
【1】 Verbeuren, T.; Rupin, A.; De Nanteuil, G.; Gloanec, P.; New dicarbonyl cycloalkyl based thrombin inhibitors with improved activity and selectivity compared to (D)-Phe-Pro-boroArg derivatives . 218th ACS Natl Meet (Aug 22 1999, New Orleans) 1999, Abst MEDI 201. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
34273 | N,N-bis(trimethylsilyl)amine; trimethyl-N-(trimethylsilyl)silanamine | 999-97-3 | C6H19NSi2 | 详情 | 详情 | |
(I) | 11720 | 4-Bromo-1-butene | 5162-44-7 | C4H7Br | 详情 | 详情 |
(II) | 32533 | 1,3,2-benzodioxaborole | 274-07-7 | C6H5BO2 | 详情 | 详情 |
(III) | 32534 | 2-(4-bromobutyl)-1,3,2-benzodioxaborole | C10H12BBrO2 | 详情 | 详情 | |
(IV) | 32535 | (1R,2S,3R,5R)-2,6,6-trimethylbicyclo[3.1.1]heptane-2,3-diol | C10H18O2 | 详情 | 详情 | |
(V) | 32536 | (1R,2S,6R,8R)-4-(5-bromopentyl)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0(2,6)]decane | C15H26BBrO2 | 详情 | 详情 | |
(VI) | 32537 | (1R,2S,6R,8R)-4-[(1R)-5-bromo-1-chloropentyl]-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0(2,6)]decane | C15H25BBrClO2 | 详情 | 详情 | |
(VII) | 32538 | (1R)-5-bromo-1-[(1R,2S,6R,8R)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0(2,6)]dec-4-yl]-1-pentanamine; (1R)-5-bromo-1-[(1R,2S,6R,8R)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0(2,6)]dec-4-yl]pentylamine | C15H27BBrNO2 | 详情 | 详情 |