Triethylamine → tert-Butyl [(1R,3S)-3-(2-methoxyethyl)-3-(4-[4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamate

HRID 1261692노트

반응식

HRID 1261692 반응식
[C:1]([O:5][C:6]([NH:8][C@@H:9]1[CH2:13][CH2:12][C@:11]([CH2:17][CH2:18][O:19][CH3:20])([C:14]([OH:16])=O)[CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.Cl.[F:23][C:24]([F:38])([F:37])[C:25]1[CH:30]=[CH:29][N:28]=[C:27]([N:31]2[CH2:36][CH2:35][NH:34][CH2:33][CH2:32]2)[CH:26]=1.C(N(CC)CC)C.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2C=CC=CC=2N=N1>CN(C=O)C.C(Cl)Cl>[CH3:20][O:19][CH2:18][CH2:17][C@:11]1([C:14]([N:34]2[CH2:35][CH2:36][N:31]([C:27]3[CH:26]=[C:25]([C:24]([F:38])([F:23])[F:37])[CH:30]=[CH:29][N:28]=3)[CH2:32][CH2:33]2)=[O:16])[CH2:12][CH2:13][C@@H:9]([NH:8][C:6](=[O:7])[O:5][C:1]([CH3:2])([CH3:3])[CH3:4])[CH2:10]1

참가 물질

7

반응물 4

HCID 8471TriethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 59833582(1S,3R)-3-[(tert-Butoxycarbonyl)amino]-1-(2-methoxyethyl)cyclopentanecarboxylic acidHCID 685975881-[4-(Trifluoromethyl)pyridin-2-yl]piperazine dihydrochloride

생성물 1

HCID 59833567tert-Butyl [(1R,3S)-3-(2-methoxyethyl)-3-(4-[4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamate수율 52.4%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 6344Dichloromethane용매

실험 절차

(1S,3R)-3-[(tert-Butoxycarbonyl)amino]-1-(2-methoxyethyl)cyclopentanecarboxylic acid (276.6 mg, 0.96 mmol), 1-[4-(trifluoromethyl)pyridin-2-yl]piperazine dihydrochloride (322.0 mg, 1.06 mmol), triethylamine (0.54 mL, 3.85 mmol) and O-(benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (547.6 mg, 1.44 mmol) (HBTU) were mixed in dry DMF (6.6 mL) and the resultanting brown solution was stirred at room temperature under N2 for three days. The reaction mixture was diluted with CH2Cl2, and washed with saturated Na2CO3. The aqueous layer was extracted with CH2Cl2 four times. The combined organic layers were dried (MgSO4), filtered, concentrated and purified by flash chromatography (EtOAc/Hexane) to provide the desired product (252 mg, 52%). MS calculated for C24H36F3N4O4 (M+H) 501.3; found 401.3 (M+H-Boc).

후처리

  1. washwashed with saturated Na2CO3
  2. extractionThe aqueous layer was extracted with CH2Cl2 four times
  3. dry with materialThe combined organic layers were dried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. custompurified by flash chromatography (EtOAc/Hexane)

출처 및 근거

ORD 기록
ord-34397c44c3c04157a33d28a8aaa7005f
출처 데이터셋
uspto-grants-2013_06
특허 번호
US08470827B2

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