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Diisopropylethylamine → (2S,4R)-methyl 1-((S)-2-((hept-6-enyloxy)carbonylamino)-3,3-dimethylbutanoyl)-4-methoxy-4-(2'-vinylbiphenyl-4-yl)pyrrolidine-2-carboxylate

HRID 1043423
Notes
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Reaction equation

HRID 1043423 reaction equation
CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[CH3:25][O:26][C@:27]1([C:36]2[CH:41]=[CH:40][C:39]([C:42]3[CH:47]=[CH:46][CH:45]=[CH:44][C:43]=3[CH:48]=[CH2:49])=[CH:38][CH:37]=2)[CH2:31][NH:30][C@H:29]([C:32]([O:34][CH3:35])=[O:33])[CH2:28]1.[CH2:50]([O:57][C:58]([NH:60][C@@H:61]([C:65]([CH3:68])([CH3:67])[CH3:66])[C:62](O)=[O:63])=[O:59])[CH2:51][CH2:52][CH2:53][CH2:54][CH:55]=[CH2:56].CCN(C(C)C)C(C)C>C(Cl)Cl>[CH2:50]([O:57][C:58]([NH:60][C@@H:61]([C:65]([CH3:68])([CH3:67])[CH3:66])[C:62]([N:30]1[CH2:31][C@:27]([O:26][CH3:25])([C:36]2[CH:41]=[CH:40][C:39]([C:42]3[CH:47]=[CH:46][CH:45]=[CH:44][C:43]=3[CH:48]=[CH2:49])=[CH:38][CH:37]=2)[CH2:28][C@H:29]1[C:32]([O:34][CH3:35])=[O:33])=[O:63])=[O:59])[CH2:51][CH2:52][CH2:53][CH2:54][CH:55]=[CH2:56]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 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 45378515(S)-2-((hept-6-enyloxy)carbonylamino)-3,3-dimethylbutanoic acidHCID 59266525(2S,4R)-methyl 4-methoxy-4-(2'-vinylbiphenyl-4-yl)pyrrolidine-2-carboxylate

Product 1

HCID 59266539
(2S,4R)-methyl 1-((S)-2-((hept-6-enyloxy)carbonylamino)-3,3-dimethylbutanoyl)-4-methoxy-4-(2'-vinylbiphenyl-4-yl)pyrrolidine-2-carboxylate
Yield 74.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

HATU (248 mg, 0.652 mmol) was added to a solution of (2S,4R)-methyl 4-methoxy-4-(2′-vinylbiphenyl-4-yl)pyrrolidine-2-carboxylate (200 mg, 0.593 mmol), (S)-2-((hept-6-enyloxy)carbonylamino)-3,3-dimethylbutanoic acid (201 mg, 0.741 mmol) and DIEA (0.311 mL, 1.778 mmol) in DCM (8 mL) and stirred at r.t. 60 hours. The reaction was evaporated and purified on the Biotage (10-40% EtOAc:Hex) to give (2S,4R)-methyl 1-((S)-2-((hept-6-enyloxy)carbonylamino)-3,3-dimethylbutanoyl)-4-methoxy-4-(2′-vinylbiphenyl-4-yl)pyrrolidine-2-carboxylate (260 mg, 0.440 mmol, 74% yield) as a white solid. 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 0.96-1.00 (m, 1H) 1.06-1.10 (m, 1H) 1.11-1.19 (m, 7H) 1.30-1.47 (m, 4H) 1.55-1.64 (m, 2H) 1.99-2.10 (m, 2H) 2.49-2.55 (m, 1H) 2.89 (d, J=13.05 Hz, 1H) 2.93-3.04 (m, 3H) 3.73-3.80 (m, 3H) 3.92-4.10 (m, 3H) 4.11-4.20 (m, 1H) 4.31-4.41 (m, 1H) 4.87-5.05 (m, 3H) 5.23 (dd, J=10.92, 1.13 Hz, 1H) 5.38-5.42 (m, 1H) 5.68-5.75 (m, 1H) 5.75-5.86 (m, 1H) 6.62-6.76 (m, 1H) 7.28-7.43 (m, 7H) 7.63-7.69 (m, 1H). LCMS: r.t.=2.25 min., [M+H]+=591 Phenomenex Luna S10 (3×50 mm); Solvent A=95% water—5% methanol—10 mM ammonium acetate, Solvent B=5% water—95% methanol—10 mM ammonium acetate; gradient=0% to 100% solvent B over 2 min. and then hold for 1 min.; 4 ml/min; inj. vol.=10 ul; wavelength=220 nm.

Workup

  1. custom60 hours
  2. customThe reaction was evaporated
  3. custompurified on the Biotage (10-40% EtOAc:Hex)

Sources & evidence

ORD record
ord-d4f6c731cea44368941de8071dd0321c
Source dataset
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08563505B2

Reaction notes

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