Water → (5)-4-((3S,4S)-3-fluoro-1-((R)-1-(4-methylbenzyl)-2-oxopyrrolidin-3-yl)piperidin-4-yl)phenyl 2-((tert-butoxycarbonyl)amino)-3-methylbutanoate

HRID 716090노트

반응식

HRID 716090 반응식
[F:1][C@H:2]1[C@H:7]([C:8]2[CH:13]=[CH:12][C:11]([OH:14])=[CH:10][CH:9]=2)[CH2:6][CH2:5][N:4]([C@@H:15]2[CH2:19][CH2:18][N:17]([CH2:20][C:21]3[CH:26]=[CH:25][C:24]([CH3:27])=[CH:23][CH:22]=3)[C:16]2=[O:28])[CH2:3]1.[C:29]([O:33][C:34]([NH:36][C@@H:37]([CH:41]([CH3:43])[CH3:42])[C:38](O)=[O:39])=[O:35])([CH3:32])([CH3:31])[CH3:30].C1CCC(N=C=NC2CCCCC2)CC1.O>C(Cl)Cl.CN(C1C=CN=CC=1)C>[C:29]([O:33][C:34]([NH:36][C@@H:37]([CH:41]([CH3:43])[CH3:42])[C:38]([O:14][C:11]1[CH:12]=[CH:13][C:8]([C@@H:7]2[CH2:6][CH2:5][N:4]([C@@H:15]3[CH2:19][CH2:18][N:17]([CH2:20][C:21]4[CH:22]=[CH:23][C:24]([CH3:27])=[CH:25][CH:26]=4)[C:16]3=[O:28])[CH2:3][C@H:2]2[F:1])=[CH:9][CH:10]=1)=[O:39])=[O:35])([CH3:32])([CH3:31])[CH3:30]

참가 물질

7

반응물 4

HCID 962WaterHCID 10868DicyclohexylcarbodiimideHCID 83693Boc-L-ValineHCID 91820646(3R)-3-[(3S,4S)-3-fluoro-4-(4-hydroxyphenyl)piperidin-1-yl]-1-[(4-methylphenyl)methyl]pyrrolidin-2-one

생성물 1

HCID 118207672(5)-4-((3S,4S)-3-fluoro-1-((R)-1-(4-methylbenzyl)-2-oxopyrrolidin-3-yl)piperidin-4-yl)phenyl 2-((tert-butoxycarbonyl)amino)-3-methylbutanoate수율 89.3%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매

실험 절차

To a solution of (R)-3-((3S,4S)-3-fluoro-4-(4-hydroxyphenyl)piperidin-1-yl)-1-(4-methylbenzyl)pyrrolidin-2-one (0.02 g, 0.052 mmol, example 1) in DCM (3 mL) was added (S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanoic acid (0.059 g, 0.272 mmol) followed by DCC (0.032 g, 0.157 mmol) and DMAP (6.39 mg, 0.052 mmol). The reaction mixture was stirred at room temperature for 18 h. Water (10 mL) was then added, and the layers were separated. The aqueous layer was extracted with DCM (3×10 mL) and the organic layers were combined, dried over Na2SO4, and concentrated to a crude product. The crude product was purified by preparative TLC eluting with 35% ethyl acetate in petroleum ether to provide the purified product (S)-4-((3S,4S)-3-fluoro-1-((R)-1-(4-methylbenzyl)-2-oxopyrrolidin-3-yl)piperidin-4-yl)phenyl 2-((tert-butoxycarbonyl)amino)-3-methylbutanoate (27 mg, 79%). LC/MS (Conditions A) RT=2.523 min, (M+H)+=582.2. 1H NMR (400 MHz, methanol-d4) δ 7.36 (d, J=8.5 Hz, 2H), 7.18 (s, 4H), 7.08 (d, J=8.5 Hz, 2H), 4.80-4.59 (m, J=10.0, 10.0, 5.0 Hz, 1H), 4.51 (d, J=15.0 Hz, 1H), 4.39 (d, J=15.0 Hz, 1H), 4.23 (dd, J=8.3, 6.3 Hz, 1H), 3.72 (t, J=8.8 Hz, 1H), 3.56-3.40 (m, 1H), 3.32-3.22 (m, 2H), 2.86-2.61 (m, 2H), 2.47 (td, J=10.0, 5.0 Hz, 1H), 2.34 (s, 3H), 2.32-2.23 (m, 1H), 2.22-2.01 (m, 2H), 1.88 (dd, J=9.5, 4.0 Hz, 2H), 1.74 (dt, J=13.4, 3.8 Hz, 1H), 1.50 (s, 9H), 1.42-1.30 (m, 1H), 1.09 (dd, J=10.0, 7.0 Hz, 6H). 19F NMR (376 MHz, methanol-d4) δ −184.32.

후처리

  1. customthe layers were separated
  2. extractionThe aqueous layer was extracted with DCM (3×10 mL)
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated to a crude product
  5. customThe crude product was purified by preparative TLC
  6. washeluting with 35% ethyl acetate in petroleum ether

출처 및 근거

ORD 기록
ord-89dafa6fa23c4b50b95f7ad2a04a31a5
출처 데이터셋
uspto-grants-2015_11
특허 번호
US09187506B2

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