Diisopropylethylamine → (1R,2S)-ethyl 1-((2S,4R)-1-((S)-4-(N-(but-3-enyl)-2-nitrophenylsulfonamido)-2-(tert-butoxycarbonylamino)butanoyl)-4-hydroxypyrrolidine-2-carboxamido)-2-vinylcyclopropanecarboxylate

HRID 1171963

Reaction equation

HRID 1171963 reaction equation
Cl.[CH2:2]([O:4][C:5]([C@@:7]1([NH:12][C:13]([C@@H:15]2[CH2:19][C@@H:18]([OH:20])[CH2:17][NH:16]2)=[O:14])[CH2:9][C@H:8]1[CH:10]=[CH2:11])=[O:6])[CH3:3].[CH2:21]([N:25]([CH2:38][CH2:39][C@H:40]([NH:44][C:45]([O:47][C:48]([CH3:51])([CH3:50])[CH3:49])=[O:46])[C:41](O)=[O:42])[S:26]([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[N+:35]([O-:37])=[O:36])(=[O:28])=[O:27])[CH2:22][CH:23]=[CH2:24].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>C1(C)C=CC=CC=1.C(#N)C.O.C(OCC)(=O)C>[CH2:21]([N:25]([CH2:38][CH2:39][C@H:40]([NH:44][C:45]([O:47][C:48]([CH3:51])([CH3:50])[CH3:49])=[O:46])[C:41]([N:16]1[CH2:17][C@H:18]([OH:20])[CH2:19][C@H:15]1[C:13]([NH:12][C@:7]1([C:5]([O:4][CH2:2][CH3:3])=[O:6])[CH2:9][C@H:8]1[CH:10]=[CH2:11])=[O:14])=[O:42])[S:26]([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[N+:35]([O-:37])=[O:36])(=[O:28])=[O:27])[CH2:22][CH:23]=[CH2:24]

Participants

9

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 59554189(S)-4-(N-(but-3-enyl)-2-nitrophenylsulfonamido)-2-(tert-butoxycarbonylamino)-butanoic acidHCID 67330424(1R,2S)-ethyl 1-((3R,5S)-3-hydroxypyrrolidine-5-carboxamido)-2-vinylcyclopropanecarboxylate hydrochloride

Product 1

HCID 59554237(1R,2S)-ethyl 1-((2S,4R)-1-((S)-4-(N-(but-3-enyl)-2-nitrophenylsulfonamido)-2-(tert-butoxycarbonylamino)butanoyl)-4-hydroxypyrrolidine-2-carboxamido)-2-vinylcyclopropanecarboxylate

Reagents, catalysts & solvents 4

HCID 962WaterSolventHCID 1140TolueneSolventHCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Procedure

(1R,2S)-ethyl-1-((2S,4R)-4-hydroxypyrrolidine-2-carboxamido)-2-vinylcyclopropanecarboxylate hydrochloride salt (WO2005095403) (1.04 g, 3.32 mmol), (S)-4-(N-(but-3-enyl)-2-nitrophenylsulfonamido)-2-(tert-butoxycarbonylamino)-butanoic acid (1.38 g, 3.02 mmol) and HATU (1.26 g, 3.32 mmol) in toluene (36 mL) and ACN (4 mL) was added DIEA (2.05 mL, 6.03 mmol) at 0° C. The reaction warmed to rt and stirred at rt for 1 hr. Ethyl acetate (50 mL) and water (20 mL) was added. The organic layer was separated and washed with brine, dried over sodium sulfate. After removal of solvent, the residue was purified by chromatography (Ethyl acetate) to give (1R,2S)-ethyl 1-((2S,4R)-1-((S)-4-(N-(but-3-enyl)-2-nitrophenylsulfonamido)-2-(tert-butoxycarbonylamino)butanoyl)-4-hydroxypyrrolidine-2-carboxamido)-2-vinylcyclopropanecarboxylate as white foam solid (1.63 g, 76%). MS: Calcd.: 707; Found: [M+H]+ 708.

Workup

  1. customThe organic layer was separated
  2. washwashed with brine
  3. dry with materialdried over sodium sulfate
  4. customAfter removal of solvent
  5. customthe residue was purified by chromatography (Ethyl acetate)

Sources & evidence

ORD record
ord-3621e7c1d95c4ee99413a2ec2f5fa1f7
Source dataset
uspto-grants-2010_11
Patent number
US07829665B2

Linked notes

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