Diisopropylethylamine → benzhydryl 1-[(Z)-[2-[[(2R,3S)-2-[[4-[[(2-methylpropan-2-yl)oxycarbonylamino]methyl]triazol-1-yl]methyl]-4-oxoazetidin-3-yl]amino]-1-[2-[(2-methylpropan-2-yl)oxycarbonylamino]-1,3-thiazol-4-yl]-2-oxoethylidene]amino]oxycyclopropane-1-carboxylate

HRID 708395Notes

Reaction equation

HRID 708395 reaction equation
[CH:1]([O:14][C:15]([C:17]1([O:20]/[N:21]=[C:22](/[C:26]2[N:27]=[C:28]([NH:31][C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[S:29][CH:30]=2)\[C:23](O)=[O:24])[CH2:19][CH2:18]1)=[O:16])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH2:72][C@@H:73]1[C:76](=[O:77])[NH:75][C@@H:74]1[CH2:78][N:79]1[CH:83]=[C:82]([CH2:84][NH:85][C:86](=[O:92])[O:87][C:88]([CH3:91])([CH3:90])[CH3:89])[N:81]=[N:80]1>C(Cl)Cl.C(Cl)Cl.CN(C=O)C>[C:88]([O:87][C:86]([NH:85][CH2:84][C:82]1[N:81]=[N:80][N:79]([CH2:78][C@@H:74]2[C@H:73]([NH:72][C:23](=[O:24])/[C:22](=[N:21]\[O:20][C:17]3([C:15]([O:14][CH:1]([C:2]4[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=4)[C:8]4[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=4)=[O:16])[CH2:19][CH2:18]3)/[C:26]3[N:27]=[C:28]([NH:31][C:32]([O:34][C:35]([CH3:38])([CH3:36])[CH3:37])=[O:33])[S:29][CH:30]=3)[C:76](=[O:77])[NH:75]2)[CH:83]=1)=[O:92])([CH3:91])([CH3:89])[CH3:90]

Participants

7

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 118380020(Z)-2-((1-((benzhydryloxy)carbonyl)cyclopropoxy)imino)-2-(2-((tert-butoxycarbonyl)amino)thiazol-4-yl)acetic acidHCID 131733755tert-butyl((1-(((2R,3S)-3-amino-4-oxoazetidin-2-yl)methyl)-1H-1,2,3-triazol-4-yl)methyl)carbamate

Product 1

HCID 118379452benzhydryl 1-[(Z)-[2-[[(2R,3S)-2-[[4-[[(2-methylpropan-2-yl)oxycarbonylamino]methyl]triazol-1-yl]methyl]-4-oxoazetidin-3-yl]amino]-1-[2-[(2-methylpropan-2-yl)oxycarbonylamino]-1,3-thiazol-4-yl]-2-oxoethylidene]amino]oxycyclopropane-1-carboxylateYield 81%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent2×HCID 22350042dichloromethane N,N-dimethylformamideSolvent

Procedure

To a slurry of (Z)-2-((1-((benzhydryloxy)carbonyl)cyclopropoxy)imino)-2-(2-((tert-butoxycarbonyl)amino)thiazol-4-yl)acetic acid (1.32 g, 2.46 mmol) in DCM (12 mL) at 0° C. was added DIPEA (1.08 mL, 6.16 mmol) followed by HATU (0.984 g, 2.59 mmol). The reaction mixture was warmed to room temperature and tert-butyl ((1-(((2R,3S)-3-amino-4-oxoazetidin-2-yl)methyl)-1H-1,2,3-triazol-4-yl)methyl)carbamate (0.73 g, 2.5 mmol) was added as a solution in DCM:DMF (1.7:1, 9.6 mL). After stirring for 1.3 h, a color change from yellow to dark purple was observed, whereupon it was diluted with DCM, washed with water, brine, dried over sodium sulfate and concentrated in vacuo. The crude residue was purified by silica gel chromatography (EtOAc-Heptane, 0-90%), affording the title compound (1.62 g, 81%) as a purple foam. LCMS: R=1.05 min, m/z=816.5 (M+1) Method 2m_acidic.

Workup

  1. washwashed with water, brine
  2. dry with materialdried over sodium sulfate
  3. concentrationconcentrated in vacuo
  4. customThe crude residue was purified by silica gel chromatography (EtOAc-Heptane, 0-90%)

Sources & evidence

ORD record
ord-972b858572844d939b5c456b89374891
Source dataset
uspto-grants-2015_11
Patent number
US09174978B2

Reaction notes

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