Diisopropylethylamine → HCID 59366853, compound

HRID 1923969Notes

Reaction equation

HRID 1923969 reaction equation
[CH2:1]([O:8][C:9](=[O:23])[CH2:10][C@H:11]([NH:15][C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[C:12]([OH:14])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CCN(C(C)C)C(C)C.[NH2:33][C@H:34]([CH2:48][CH2:49][C:50]1[CH:55]=[CH:54][C:53]([C:56]([F:59])([F:58])[F:57])=[CH:52][CH:51]=1)[C:35]([NH:37][C:38]1[CH:39]=[C:40]2[C:45](=[CH:46][CH:47]=1)[N:44]=[CH:43][CH:42]=[CH:41]2)=[O:36].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F>C(Cl)Cl>[C:19]([O:18][C:16]([NH:15][C@H:11]([C:12](=[O:14])[NH:33][C@@H:34]([C:35](=[O:36])[NH:37][C:38]1[CH:39]=[C:40]2[C:45](=[CH:46][CH:47]=1)[N:44]=[CH:43][CH:42]=[CH:41]2)[CH2:48][CH2:49][C:50]1[CH:55]=[CH:54][C:53]([C:56]([F:59])([F:58])[F:57])=[CH:52][CH:51]=1)[CH2:10][C:9]([O:8][CH2:1][C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1)=[O:23])=[O:17])([CH3:22])([CH3:21])[CH3:20]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 1581888N-tert-Butoxycarbonyl-L-aspartic acid beta-benzyl esterHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 59367311HCID 59367311, compound

Product 1

HCID 59366853HCID 59366853, compoundYield 82.6%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To the solution of (2S)-4-(benzyloxy)-2-{[(tert-butoxy)carbonyl]amino}-4-oxobutanoic acid VIII (430 mg, 1.33 mmol) in DCM (10 mL) was added DIPEA (0.65 mL, 3.75 mmol), (2R)-2-amino-N-(quinolin-6-yl)-4-[4-(trifluoromethyl)phenyl]butanamide VII (540 mg 1.21 mmol) and TBTU (428 mg, 1.33 mmol). The mixture was stirred at r.t. overnight. The reaction mixture was then washed with 1 M K2CO3, 1 M HCl, brine and dried over MgSO4. The residue was then purified on a silica gel column (50:1 CHCl3/methanol) to yield benzyl (3S)-3-{[(tert-butoxy)carbonyl]amino}-3-{[(1R)-1-[(quinolin-6-yl)carbamoyl]-3-[4-(trifluoromethyl)phenyl]propyl]carbamoyl}propanoate IX (680 mg, 1.00 mmol, 75% yield). 1H NMR (CDCl3) 1.46 (s, 9H), 1.88-2.20 (m, 2H), 2.40-2.64 (m, 1H), 2.66-2.88 (m, 1H), 2.92 (d, J=6 Hz, 1H), 3.27 (dd, J=5 Hz, J=17 Hz, 1H), 4.49-4.70 (m, 2H), 5.12 (d, J=5 Hz, 2H), 5.59 (d, J=8 Hz, 1H), 7.07 (d, J=8 Hz, 1H), 7.22-7.42 (m, 8H), 7.53 (s, 1H), 7.57 (s, 1H), 7.72 (dd, J=2 Hz, J=9 Hz, 1H), 8.00 (d, J=9 Hz, 1H), 8.08 (d, J=8 Hz, 1H), 8.41 (d, J=2 Hz, 1H), 8.82 (d, J=4 Hz, 1H), 8.89 (s, 1H); 19F NMR (DMSO-d6) −61.73 (s, 3F); ESIMS found for C36H37F3N4O6 m/z 679 (M+H).

Workup

  1. washThe reaction mixture was then washed with 1 M K2CO3, 1 M HCl, brine
  2. dry with materialdried over MgSO4
  3. customThe residue was then purified on a silica gel column (50:1 CHCl3/methanol)

Sources & evidence

ORD record
ord-fccefb0c1fd04affa1b80873c2c5a70a
Source dataset
uspto-grants-2012_05
Patent number
US08178490B2

Reaction notes

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