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Triphenylphosphine → Tert-butyl 4-(6-(1-(4-(trifluoromethyl)phenyl)piperidin-4-yloxy)benzo[d]oxazole-2-carboxamido)piperidine-1-carboxylate

HRID 1626333
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HRID 1626333 반응식
[OH:1][C:2]1[CH:26]=[CH:25][C:5]2[N:6]=[C:7]([C:9]([NH:11][CH:12]3[CH2:17][CH2:16][N:15]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:14][CH2:13]3)=[O:10])[O:8][C:4]=2[CH:3]=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O.[F:41][C:42]([F:57])([F:56])[C:43]1[CH:48]=[CH:47][C:46]([N:49]2[CH2:54][CH2:53][CH:52](O)[CH2:51][CH2:50]2)=[CH:45][CH:44]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C1(C)C=CC=CC=1>[F:57][C:42]([F:41])([F:56])[C:43]1[CH:44]=[CH:45][C:46]([N:49]2[CH2:54][CH2:53][CH:52]([O:1][C:2]3[CH:26]=[CH:25][C:5]4[N:6]=[C:7]([C:9]([NH:11][CH:12]5[CH2:13][CH2:14][N:15]([C:18]([O:20][C:21]([CH3:22])([CH3:23])[CH3:24])=[O:19])[CH2:16][CH2:17]5)=[O:10])[O:8][C:4]=4[CH:3]=3)[CH2:51][CH2:50]2)=[CH:47][CH:48]=1
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참가 물질

6

반응물 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 220976741-[4-(Trifluoromethyl)phenyl]piperidin-4-olHCID 57951081Tert-butyl 4-(6-hydroxybenzo[d]oxazole-2-carboxamido)piperidine-1-carboxylate

생성물 1

HCID 57951056Tert-butyl 4-(6-(1-(4-(trifluoromethyl)phenyl)piperidin-4-yloxy)benzo[d]oxazole-2-carboxamido)piperidine-1-carboxylate
수율 66.3%

시약·촉매·용매 1

HCID 1140Toluene용매

실험 절차

To a stirred solution of tert-butyl 4-(6-hydroxybenzo[d]oxazole-2-carboxamido)piperidine-1-carboxylate (0.15 g, 0.41 mmol) in toluene (4 mL) at room temperature was added diisopropyl azodicarboxylate (0.1 g, 0.49 mmol), 1-(4-(trifluoromethyl)phenyl)piperidin-4-ol (0.1 g, 0.41 mmol), and triphenylphosphine (0.13 g, 0.49 mmol). The mixture was stirred at room temperature overnight and then concentrated under reduced pressure. The residue obtained was purified by flash chromatography (silica gel, ethyl acetate/hexanes=2/3) to afford tert-butyl 4-(6-(1-(4-(trifluoromethyl)phenyl)piperidin-4-yloxy)benzo[d]oxazole-2-carboxamido)piperidine-1-carboxylate (compound 1) as a off-white solid (0.16 g, 66%). 1H-NMR (CDCl3, 300 MHz): δ 7.65 (m, 1H), 7.48 (m, 2H), 7.15 (m, 1H), 7.05 (m, 2H), 6.96 (m, 2H), 4.56 (m, 1H), 4.12 (m, 3H), 3.60 (m, 2H), 3.28 (m, 2H), 2.93 (m, 2H), 2.04 (m, 8H), 1.47 (s, 9H) ppm; MS (ESI): 589.6 (M+1).

후처리

  1. concentrationconcentrated under reduced pressure
  2. customThe residue obtained
  3. customwas purified by flash chromatography (silica gel, ethyl acetate/hexanes=2/3)

출처 및 근거

ORD 기록
ord-864d82d78cd449769ee46f4e85f1b77c
출처 데이터셋
uspto-grants-2014_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08785449B2

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