4-Methylmorpholine → 2-{4-[2-Tert-butoxycarbonylamino-3-(4-chlorophenyl)-propionyl]-3-ethyl-piperazin-1-yl}-3-naphthalen-2-yl-propionic acid methyl ester

HRID 720183Notes

Reaction equation

HRID 720183 reaction equation
[CH3:1][O:2][C:3](=[O:24])[CH:4]([N:16]1[CH2:21][CH2:20][NH:19][CH:18]([CH2:22][CH3:23])[CH2:17]1)[CH2:5][C:6]1[CH:15]=[CH:14][C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[CH:7]=1.[CH3:25][C:26]([O:29][C:30]([NH:32][C@@H:33]([C:42](O)=[O:43])[CH2:34][C:35]1[CH:40]=[CH:39][C:38]([Cl:41])=[CH:37][CH:36]=1)=[O:31])([CH3:28])[CH3:27].F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.CN1CCOCC1>CN(C=O)C.O.CCOC(C)=O>[CH3:1][O:2][C:3](=[O:24])[CH:4]([N:16]1[CH2:21][CH2:20][N:19]([C:42](=[O:43])[CH:33]([NH:32][C:30]([O:29][C:26]([CH3:27])([CH3:25])[CH3:28])=[O:31])[CH2:34][C:35]2[CH:36]=[CH:37][C:38]([Cl:41])=[CH:39][CH:40]=2)[CH:18]([CH2:22][CH3:23])[CH2:17]1)[CH2:5][C:6]1[CH:15]=[CH:14][C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[CH:7]=1

Participants

8

Reactant 4

HCID 79724-MethylmorpholineHCID 7018791N-Boc-4-chloro-D-phenylalanineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 695875432-(3-Ethyl-piperazin-1-yl)-3-naphthalen-2-yl-propionic acid methyl ester

Product 1

HCID 695879372-{4-[2-Tert-butoxycarbonylamino-3-(4-chlorophenyl)-propionyl]-3-ethyl-piperazin-1-yl}-3-naphthalen-2-yl-propionic acid methyl ester

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
0 °C

Procedure

2-(3-Ethyl-piperazin-1-yl)-3-naphthalen-2-yl-propionic acid methyl ester, 34, (0.52 g, 1.6 mmol) and Boc-D-4-chlorophenylalanine (0.5 g, 1.7 mmol) and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluoro-phosphate (1.2 g, 3.2 mmol) are dissolved in anhydrous DMF (20 mL). The reaction mixture is cooled to 0° C., then N-methylmorpholine (0.35 mL, 3.2 mmol) is added. The reaction mixture is placed in a refrigerator overnight. EtOAc (75 mL) and water (100 mL) are added, and the organic layer is separated. The aqueous layer is extracted with EtOAc (3×50 mL). All organic layers are combined and washed with water (20 mL), and dried over Na2SO4. The organic layers are concentrated in vacuo to afford 1.0 g (quantitative yield) of the desired product. 1H NMR (CDCl3, δ): 7.70–7.65 (m, 3H), 7.52 (s, 1H), 7.35–7.32 (m, 2H), 7.22–7.13 (m, 4H), 7.07–7.02 (m, 2H), 5.59 (dd, J=13.5, 8.7 Hz, 1H), 4.74 (q, J=7.5 Hz, 1H), 2.28–4.21 (m, 1H), 3.53 (d, J=12.3 Hz, 3H), 3.42–3.08 (m, 2H), 3.04–2.81 m, 4H), 2.80 (s, 1H), 2.75 (s, 3H), 2.64–2.60 (m, 1H), 2.46 (t, J=10.5 Hz, 1H), 2.20–2.05 (m, 1H), 1.55–1.40 (m, 1H), 1.18 (s,9H), 0.54–0.47 (m, 2H); 13C NMR, δ 171.6, 170.5, 170.0, 162.9, 155.0, 150.7, 135.8, 135.2, 133.6, 132.8, 132.4, 131.1, 131.2, 128.9, 128.7, 128.6, 128.0, 127.7, 127.6, 126.2, 125.6, 124.5, 120.4, 79.7, 68.9, 60.5, 55.8, 53.7, 51.4, 51.0, 47.4, 47.0, 41.5, 40.0, 39.0, 38.7, 38.0, 36.6, 35.3, 35.0, 31.6, 28.4, 22.8, 21.8, 21.1, 14.3,10.5, 10.0.

Workup

  1. customis placed in a refrigerator overnight
  2. customthe organic layer is separated
  3. extractionThe aqueous layer is extracted with EtOAc (3×50 mL)
  4. washwashed with water (20 mL)
  5. dry with materialdried over Na2SO4
  6. concentrationThe organic layers are concentrated in vacuo

Sources & evidence

ORD record
ord-9e4e47d927a544c68ffe6eafd059a0fd
Source dataset
uspto-grants-2006_11
Patent number
US07132539B2

Reaction notes

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