4-Methylmorpholine → Phenylmethyl (3S)-2-[(2R)-3-cyclopentyl-2-({formyl[(phenylmethyl)oxy]amino}methyl)propanoyl]-3-{[(4-{[(phenylmethyl)oxy]carbonyl}phenyl)amino]carbonyl}-1-pyrazolidinecarboxylate

HRID 1396959Notes

Reaction equation

HRID 1396959 reaction equation
[CH:1]1([CH2:6][C@H:7]([CH2:28][N:29]([CH:38]=[O:39])[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[C:8]([N:10]2[C@H:14]([C:15](O)=[O:16])[CH2:13][CH2:12][N:11]2[C:18]([O:20][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[O:19])=[O:9])[CH2:5][CH2:4][CH2:3][CH2:2]1.CN1CCOCC1.F[B-](F)(F)F.COC1N=C(OC)N=C([N+]2(C)CCOCC2)N=1.[NH2:69][C:70]1[CH:85]=[CH:84][C:73]([C:74]([O:76][CH2:77][C:78]2[CH:83]=[CH:82][CH:81]=[CH:80][CH:79]=2)=[O:75])=[CH:72][CH:71]=1>C(#N)C>[CH:1]1([CH2:6][C@H:7]([CH2:28][N:29]([CH:38]=[O:39])[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[C:8]([N:10]2[C@H:14]([C:15]([NH:69][C:70]3[CH:85]=[CH:84][C:73]([C:74]([O:76][CH2:77][C:78]4[CH:83]=[CH:82][CH:81]=[CH:80][CH:79]=4)=[O:75])=[CH:72][CH:71]=3)=[O:16])[CH2:13][CH2:12][N:11]2[C:18]([O:20][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[O:19])=[O:9])[CH2:2][CH2:3][CH2:4][CH2:5]1

Participants

6

Reactant 4

HCID 79724-MethylmorpholineHCID 98488Benzyl p-aminobenzoateHCID 116312684-(4,6-Dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium tetrafluoroborateHCID 86706346(3S)-2-[(2R)-3-cyclopentyl-2-({formyl[(phenylmethyl)oxy]amino}methyl)propanoyl]-1-{[(phenylmethyl)oxy]carbonyl}-3-pyrazolidinecarboxylic acid

Product 1

HCID 86706391Phenylmethyl (3S)-2-[(2R)-3-cyclopentyl-2-({formyl[(phenylmethyl)oxy]amino}methyl)propanoyl]-3-{[(4-{[(phenylmethyl)oxy]carbonyl}phenyl)amino]carbonyl}-1-pyrazolidinecarboxylateYield 79.2%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a solution of (3S)-2-[(2R)-3-cyclopentyl-2-({formyl[(phenylmethyl)oxy]amino}methyl)propanoyl]-1-{[(phenylmethyl)oxy]carbonyl}-3-pyrazolidinecarboxylic acid (300 mg, 0.558 mmol) in acetonitrile (10 mL) under N2 at 0° C. was added 4-methylmorpholine (123 mg, 2.2 mmol), followed by 4-[4,6-bis(methyloxy)-1,3,5-triazin-2-yl]-4-methylmorpholin-4-ium tetrafluoroborate (366 mg, 1.116 mmol). The mixture was stirred for 1 h and to this mixture was added phenylmethyl 4-aminobenzoate (191 mg, 0.837 mmol). The mixture was stirred at rt overnight. The mixture was concentrated, and the residue was purified by flash column chromatography eluting with petroleum ether/ethyl acetate (5:1 to 3:1) to provide the title compound (330 mg).

Workup

  1. stirringThe mixture was stirred at rt overnight
  2. concentrationThe mixture was concentrated
  3. customthe residue was purified by flash column chromatography
  4. washeluting with petroleum ether/ethyl acetate (5:1 to 3:1)

Sources & evidence

ORD record
ord-673b094275fd46dbac602e976ca39825
Source dataset
uspto-grants-2014_12
Patent number
US08901119B2

Reaction notes

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