Diisopropylethylamine → Methyl ((S)-3-methyl-1-oxo-1-((S)-2-(5-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-imidazol-2-yl)pyrrolidin-1-yl)butan-2-yl)carbamate

HRID 71673노트

반응식

HRID 71673 반응식
C(N(C(C)C)CC)(C)C.Cl.[NH:11]1[CH2:15][CH2:14][CH2:13][C@H:12]1[C:16]1[NH:17][C:18]([C:21]2[CH:26]=[CH:25][C:24]([B:27]3[O:31][C:30]([CH3:33])([CH3:32])[C:29]([CH3:35])([CH3:34])[O:28]3)=[CH:23][CH:22]=2)=[CH:19][N:20]=1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.[CH3:60][O:61][C:62]([NH:64][C@@H:65]([CH:69]([CH3:71])[CH3:70])[C:66](O)=[O:67])=[O:63]>CN(C)C=O.C(OCC)(=O)C>[CH3:60][O:61][C:62](=[O:63])[NH:64][C@H:65]([C:66]([N:11]1[CH2:15][CH2:14][CH2:13][C@H:12]1[C:16]1[NH:17][C:18]([C:21]2[CH:26]=[CH:25][C:24]([B:27]3[O:31][C:30]([CH3:33])([CH3:32])[C:29]([CH3:35])([CH3:34])[O:28]3)=[CH:23][CH:22]=2)=[CH:19][N:20]=1)=[O:67])[CH:69]([CH3:71])[CH3:70]

참가 물질

7

반응물 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 10942966(2S)-2-((methoxycarbonyl)amino)-3-methylbutanoic acidHCID 66620496(S)-2-(pyrrolidin-2-yl)-5-(4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)phenyl)-1H-imidazole hydrochloride

생성물 1

HCID 57462153Methyl ((S)-3-methyl-1-oxo-1-((S)-2-(5-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-imidazol-2-yl)pyrrolidin-1-yl)butan-2-yl)carbamate수율 68.2%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

Diisopropylethylamine (7.63 mL, 43.8 mmol) was added to a suspension of (S)-2-pyrrolidin-2-yl-5-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-1H-imidazole hydrochloride (7.33 g, 19.5 mmol), O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (7.6 g, 19.9 mmol) and (S)-2-methoxycarbonylamino-3-methyl-butyric acid (3.59 g, 20.5 mmol) in dimethylformamide (75 mL). All solids dissolved. After 30 min the reaction mixture was diluted with ethyl acetate (300 mL) and was washed with ½ saturated sodium chloride (1×300 mL), half saturated sodium bicarbonate (2×150 mL) and brine (1×100 mL). The organic phase was dried with sodium sulfate, filtered and the solvent was removed under reduced pressure. The resulting tan foam was subjected to silica gel chromatography with eluate of 20-100% ethyl acetate and hexanes, to provide (S,S)-[2-methyl-1-(2-{5-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-1H-imidazol-2-yl}-pyrrolidine-1-carbonyl)-propyl]-carbamic acid methyl ester (6.6 g, 68%) as a white foam: 1H (DMSO-d6): δ=11.81 (br s, 1H), 7.72 (m, 2H), 7.61 (m, 2H), 7.51 (br s, 1H), 7.27 (d, J=8.4 Hz, 1H), 5.05 (m, 1H), 4.04 (m, 2H), 3.78 (m, 2H), 3.52 (s, 3H), 2.11 (m, 2H), 1.93 (m, 2H), 1.28 (s, 12H), 0.85 (dd, J1=6.6 Hz, J2=11.4 Hz, 6H).

후처리

  1. dissolutionAll solids dissolved
  2. washwas washed with ½ saturated sodium chloride (1×300 mL), half saturated sodium bicarbonate (2×150 mL) and brine (1×100 mL)
  3. dry with materialThe organic phase was dried with sodium sulfate
  4. filtrationfiltered
  5. customthe solvent was removed under reduced pressure

출처 및 근거

ORD 기록
ord-814125c417d244bca6798246917c738c
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08822430B2

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