Borane;tetrahydrofuran → (R)-4-(4-(4-(2-(tert-Butyldiphenylsilyloxy)ethyl)piperazin-1-yl)-1-(phenylthio)butan-2-ylamino)-3-(trifluoromethylsulfonyl)benzenesulfonamide

HRID 1476271노트

반응식

HRID 1476271 반응식
[Si:1]([O:18][CH2:19][CH2:20][N:21]1[CH2:26][CH2:25][N:24]([C:27](=O)[CH2:28][C@@H:29]([NH:38][C:39]2[CH:44]=[CH:43][C:42]([S:45]([NH2:48])(=[O:47])=[O:46])=[CH:41][C:40]=2[S:49]([C:52]([F:55])([F:54])[F:53])(=[O:51])=[O:50])[CH2:30][S:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[CH2:23][CH2:22]1)([C:14]([CH3:17])([CH3:16])[CH3:15])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.B.C1COCC1>C1COCC1.N.CO>[Si:1]([O:18][CH2:19][CH2:20][N:21]1[CH2:26][CH2:25][N:24]([CH2:27][CH2:28][C@@H:29]([NH:38][C:39]2[CH:44]=[CH:43][C:42]([S:45]([NH2:48])(=[O:46])=[O:47])=[CH:41][C:40]=2[S:49]([C:52]([F:54])([F:53])[F:55])(=[O:50])=[O:51])[CH2:30][S:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[CH2:23][CH2:22]1)([C:14]([CH3:15])([CH3:16])[CH3:17])([C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

6

반응물 2

HCID 2723981Borane;tetrahydrofuranHCID 66723668(R)-4-(4-(4-(2-(tert-butyldiphenylsilyloxy)ethyl)piperazin-1-yl)-4-oxo-1-(phenylthio)butan-2-ylamino)-3-(trifluoromethylsulfonyl)benzenesulfonamide2회

생성물 1

HCID 66723648(R)-4-(4-(4-(2-(tert-Butyldiphenylsilyloxy)ethyl)piperazin-1-yl)-1-(phenylthio)butan-2-ylamino)-3-(trifluoromethylsulfonyl)benzenesulfonamide수율 25.5%

시약·촉매·용매 3

HCID 222Ammonia용매HCID 887Methanol용매HCID 8028Tetrahydrofuran용매

실험 절차

(R)-4-(4-(4-(2-(tert-Butyldiphenylsilyloxy)ethyl)piperazin-1-yl)-4-oxo-1-(phenylthio)butan-2-ylamino)-3-(trifluoromethyl sulfonyl)benzenesulfonamide (INTERMEDIATE 21, 0.98 g, 1.15 mmol) was dissolved in THF (4.6 ml), under a nitrogen atmosphere, and a solution of borane-THF complex (1M in THF; 6.93 ml, 6.93 mmol) was added. The mixture was diluted with NH3 in MeOH (7N, 20 ml) and stirred at room temperature overnight. The reaction mixture was concentrated under reduced pressure, diluted with EtOAc (75 ml), washed with water (40 ml), and dried (Na2SO4). Evaporation of the volatiles under reduced pressure afforded a concentrate, which was purified by column chromatography (ISCO, 40 g silica gel column, eluting with 0→100% EtOAc/hexanes) to provide the title compound (245 mg, yield: 25%).

후처리

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. additiondiluted with EtOAc (75 ml)
  3. washwashed with water (40 ml)
  4. dry with materialdried (Na2SO4)
  5. customEvaporation of the volatiles under reduced pressure
  6. customafforded a concentrate, which
  7. customwas purified by column chromatography (ISCO, 40 g silica gel column, eluting with 0→100% EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-d6a1c9dc95294e3ea416eb47809b40a6
출처 데이터셋
uspto-grants-2015_04
특허 번호
US09018381B2

반응 노트

불러오는 중…