Morpholine → HCID 21884596, compound

HRID 722607Notes

Reaction equation

HRID 722607 reaction equation
C([O:8][C:9]([C:11]1[CH:12]=[C:13]2[C:17](=[CH:18][CH:19]=1)[C:16](=[O:20])[N:15]([C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([C:27]3[O:28][C:29]4[CH:35]=[C:34]([C:36](Cl)=[O:37])[CH:33]=[CH:32][C:30]=4[N:31]=3)[CH:22]=1)[C:14]2=[O:39])=[O:10])C1C=CC=CC=1.[CH2:40]([NH2:46])[CH:41]1[O:45][CH2:44][CH2:43][CH2:42]1.N1CCOCC1.[N-]=C=O>C1COCC1>[O:45]1[CH2:44][CH2:43][CH2:42][CH:41]1[CH2:40][NH:46][C:36]([C:34]1[CH:33]=[CH:32][C:30]2[N:31]=[C:27]([C:23]3[CH:22]=[C:21]([N:15]4[C:14](=[O:39])[C:13]5[C:17](=[CH:18][CH:19]=[C:11]([C:9]([OH:8])=[O:10])[CH:12]=5)[C:16]4=[O:20])[CH:26]=[CH:25][CH:24]=3)[O:28][C:29]=2[CH:35]=1)=[O:37]

Participants

6

Reactant 4

HCID 8083MorpholineHCID 105034IsocyanateHCID 253298TetrahydrofurfurylamineHCID 86600622HCID 86600622, compound

Product 1

HCID 21884596HCID 21884596, compoundYield 59%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

A solution of 2-[3-(6-chlorocarbonylbenzoxazol-2-yl)phenyl]-1,3-dioxo-2,3-dihydro-1H-isoindole-5-carboxylic acid benzyl ester (50 mg, 0.09 mmol) in THF (1 ml) was added to a solution of tetrahydrofurfurylamine (14 mg, 0.14 mmol) in THF (1 ml) containing polymer bound morpholine (2.5 mmol g−1, 72 mg). After shaking overnight, polymer bound isocyanate (2.0 mmol g−1, 90 mg) was added and the reaction shaken for 4 h. The reaction was filtered and the solvent removed under reduced pressure. The residue was suspended in dioxane and palladium on carbon was added (spatula tip). The reaction vessel was purged with hydrogen and stirred at room temperature overnight. The reaction was filtered through celite and the filtrate concentrated to give the title compound (27 mg, 59%). 1H NMR (DMSO) δ 8.74(t, 1H), 8.44(dd, 1H), 8.37(m, 2H), 8.31–8.27(m, 3H), 8.12(d, 1H), 7.97(dd, 1H), 7.90(d, 1H), 7.85–7.76(m, 1H), 4.00(m, 2H), 3.79(m, 1H), 3.65(m, 2H), 1.98–1.77(4H, m). MS 510.2 m/z (M−H)−.

Workup

  1. stirringthe reaction shaken for 4 h
  2. filtrationThe reaction was filtered
  3. customthe solvent removed under reduced pressure
  4. additionpalladium on carbon was added (spatula tip)
  5. customThe reaction vessel was purged with hydrogen
  6. stirringstirred at room temperature overnight
  7. filtrationThe reaction was filtered through celite
  8. concentrationthe filtrate concentrated

Sources & evidence

ORD record
ord-e06b24164679474e9527189170dfb3fc
Source dataset
uspto-grants-2006_11
Patent number
US07138425B2

Reaction notes

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