Diisopropylethylamine → N2-phenoxyacetyl-5'-O-(4,4'-dimethoxytrityl)-2'-O-(2-cyanoethoxymethyl)guanosine

HRID 1694678노트

반응식

HRID 1694678 반응식
[O:1]([CH2:8][C:9]([NH:11][C:12]1[NH:13][C:14](=[O:53])[C:15]2[N:16]=[CH:17][N:18]([C:51]=2[N:52]=1)[C@@H:19]1[O:50][C@H:24]([CH2:25][O:26][C:27]([C:44]2[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=2)([C:36]2[CH:41]=[CH:40][C:39]([O:42][CH3:43])=[CH:38][CH:37]=2)[C:28]2[CH:33]=[CH:32][C:31]([O:34][CH3:35])=[CH:30][CH:29]=2)[C@@H:22]([OH:23])[C@H:20]1[OH:21])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(C(C)C)CC)(C)C.[C:63]([CH2:65][CH2:66][O:67][CH2:68]Cl)#[N:64].C(=O)(O)[O-].[Na+]>ClCCCl>[O:1]([CH2:8][C:9]([NH:11][C:12]1[NH:13][C:14](=[O:53])[C:15]2[N:16]=[CH:17][N:18]([C:51]=2[N:52]=1)[C@@H:19]1[O:50][C@H:24]([CH2:25][O:26][C:27]([C:44]2[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=2)([C:36]2[CH:41]=[CH:40][C:39]([O:42][CH3:43])=[CH:38][CH:37]=2)[C:28]2[CH:33]=[CH:32][C:31]([O:34][CH3:35])=[CH:30][CH:29]=2)[C@@H:22]([OH:23])[C@H:20]1[O:21][CH2:68][O:67][CH2:66][CH2:65][C:63]#[N:64])=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

6

반응물 4

HCID 81531DiisopropylethylamineHCID 516892Sodium BicarbonateHCID 116654052-Cyanoethyl chloromethyl etherHCID 136368406N2-Phenoxyacetyl-5'-O-(4,4'-dimethoxytrityl)guanosine

생성물 1

HCID 136368405N2-phenoxyacetyl-5'-O-(4,4'-dimethoxytrityl)-2'-O-(2-cyanoethoxymethyl)guanosine수율 48%

시약·촉매·용매 1

HCID 111,2-Dichloroethane용매

실험 절차

N2-Phenoxyacetyl-5′-O-(4,4′-dimethoxytrityl)guanosine (720 mg, 1 mmol) was dissolved in 4 mL of 1,2-dichloroethane, and 452 mg of diisopropylethylamine (3.5 mmol) was added, and 365 mg of dibutylstannyl dichloride (1.2 mmol) was added subsequently. Then, the reaction was performed at room temperature for 1 hour. Then, the reaction was performed at 80° C., and 155.4 mg of chloromethyl 2-cyanoethyl ether (1.3 mmol) was added dropwise, and the solution was stirred for 60 minutes. After the reaction completed, the reaction solution was mixed with an aqueous saturated sodium bicarbonate solution, and was subjected to extraction with methylene chloride. The extract was dried over anhydrous magnesium sulfate, and the solvent was distilled off. The obtained mixture was purified by 30 g of silica gel column chromatography to obtain N2-phenoxyacetyl-5′-O-(4,4′-dimethoxytrityl)-2′-O-(2-cyanoethoxy methyl)guanosine (384 mg, yield 48%).

후처리

  1. customwas performed at 80° C.
  2. extractionwas subjected to extraction with methylene chloride
  3. dry with materialThe extract was dried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled off
  5. customThe obtained mixture was purified by 30 g of silica gel column chromatography

출처 및 근거

ORD 기록
ord-f6001293a39e43b6bdd03b25a7d130db
출처 데이터셋
uspto-grants-2012_04
특허 번호
US08158775B2

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