Citric Acid → {1-[4-(8-Chloro-2-ethoxy-quinolin-4-yloxy)-2-(1-cyclopropoxysulfonylaminocarbonyl-2-ethyl-cyclopropylcarbamoyl)-pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl}-carbamic acid 1-trifluoromethyl-cyclobutyl ester

HRID 2405835Notes

Reaction equation

HRID 2405835 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[N:10]=[C:9]([O:12][CH2:13][CH3:14])[CH:8]=[C:7]2[O:15][CH:16]1[CH2:20][N:19]([C:21](=[O:39])[CH:22]([NH:27][C:28]([O:30][C:31]2([C:35]([F:38])([F:37])[F:36])[CH2:34][CH2:33][CH2:32]2)=[O:29])[C:23]([CH3:26])([CH3:25])[CH3:24])[CH:18]([C:40]([NH:42][C:43]2([C:48]([OH:50])=O)[CH2:45][CH:44]2[CH2:46][CH3:47])=[O:41])[CH2:17]1.C(N([CH:57]([CH3:59])[CH3:58])C(C)C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C1([O:87][S:88](=[O:91])(=[O:90])[NH2:89])CC1.C1CCN2C(=NCCC2)CC1.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>CN(C=O)C>[F:38][C:35]([F:36])([F:37])[C:31]1([O:30][C:28](=[O:29])[NH:27][CH:22]([C:21]([N:19]2[CH2:20][CH:16]([O:15][C:7]3[C:6]4[C:11](=[C:2]([Cl:1])[CH:3]=[CH:4][CH:5]=4)[N:10]=[C:9]([O:12][CH2:13][CH3:14])[CH:8]=3)[CH2:17][CH:18]2[C:40](=[O:41])[NH:42][C:43]2([C:48]([NH:89][S:88]([O:91][CH:57]3[CH2:59][CH2:58]3)(=[O:90])=[O:87])=[O:50])[CH2:45][CH:44]2[CH2:46][CH3:47])=[O:39])[C:23]([CH3:25])([CH3:26])[CH3:24])[CH2:34][CH2:33][CH2:32]1

Participants

8

Reactant 6

HCID 311Citric AcidHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 57785190Cyclopropyl sulfamateHCID 686164141-({4-(8-Chloro-2-ethoxy-quinolin-4-yloxy)-1-[3,3-dimethyl-2-(1-trifluoromethyl-cyclobutoxycarbonylamino)-butyryl]-pyrrolidine-2-carbonyl}-amino)-2-ethyl-cyclopropanecarboxylic acid

Product 1

HCID 76605009{1-[4-(8-Chloro-2-ethoxy-quinolin-4-yloxy)-2-(1-cyclopropoxysulfonylaminocarbonyl-2-ethyl-cyclopropylcarbamoyl)-pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl}-carbamic acid 1-trifluoromethyl-cyclobutyl esterYield 16%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To 1-({4-(8-chloro-2-ethoxy-quinolin-4-yloxy)-1-[3,3-dimethyl-2-(1-trifluoromethyl-cyclobutoxycarbonylamino)-butyryl]-pyrrolidine-2-carbonyl}-amino)-2-ethyl-cyclopropanecarboxylic acid (110 mg, 0.15 mmol) in DMF (3 mL, 0.05 M) was added i-Pr2EtN (90 μL, 0.38 mmol) and HATU (86 mg, 0.23 mmol) and stirred 1 h at rt. To the reaction mixture at it was added sulfamic acid cyclopropyl ester (46 mg, 0.30 mmol) and DBU (90 μL, 0.60 mmol). The reaction was stirred 17 h at it, and then added to 5% aq citric acid and extracted with ethyl acetate. The combined organic extracts were washed water, and brine, and subsequently dried over magnesium sulfate. Concentration, followed by purification by reverse phase HPLC and lyophilization gave {1-[4-(8-chloro-2-ethoxy-quinolin-4-yloxy)-2-(1-cyclopropoxysulfonylaminocarbonyl-2-ethyl-cyclopropylcarbamoyl)-pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl}-carbamic acid 1-trifluoromethyl-cyclobutyl ester (20 mg, 16% yield) as a white powder. NMR (CD3OD, 500 MHz) δ 9.18 (s, 1H), 7.95 (d, 1H), 7.70 (d, 1H), 7.20 (dd, 1H), 6.48 (s, 1H), 5.4 (br s, 1H), 4.45-4.6 (m, 4H), 4.2-4.3 (m, 2H), 2.58-2.62 (m, 1H), 2.2-2.4 (m, 4H), 1.5-1.7 (m, 4H), 1.43 (t, 3H), 1.2-1.3 (m, 3H) 1.2 (dd, 2H), 1.1-0.9 (m, 13H), 0.85 (m, 2H). LCMS found 846.00 [M+H]+.

Workup

  1. stirringThe reaction was stirred 17 h at it
  2. extractionextracted with ethyl acetate
  3. washThe combined organic extracts were washed water, and brine
  4. dry with materialsubsequently dried over magnesium sulfate
  5. concentrationConcentration
  6. customfollowed by purification by reverse phase HPLC and lyophilization

Sources & evidence

ORD record
ord-a6def3b06f494510b3a2ecc2a0fcdc91
Source dataset
uspto-grants-2014_08
Patent number
US08809267B2

Reaction notes

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