Triethylamine → HCID 9863658, compound

HRID 1937454Notes

Reaction equation

HRID 1937454 reaction equation
[CH:1]1([N:7]=[C:8]=[O:9])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[NH:10]1[CH2:14][CH2:13][CH2:12][C@H:11]1[C:15]([O:17][CH2:18][CH2:19][CH2:20][C:21]1[CH:22]=[N:23][CH:24]=[CH:25][CH:26]=1)=[O:16].C(N(CC)CC)C>C(Cl)Cl>[CH:1]1([NH:7][C:8]([N:10]2[CH2:14][CH2:13][CH2:12][C@H:11]2[C:15]([O:17][CH2:18][CH2:19][CH2:20][C:21]2[CH:22]=[N:23][CH:24]=[CH:25][CH:26]=2)=[O:16])=[O:9])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 18502Cyclohexyl isocyanateHCID 15427667HCID 15427667, compound

Product 1

HCID 9863658HCID 9863658, compoundYield 37.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of cyclohexylisocyanate (100 mg; 0.9 mmol), 3-(3-pyridyl)-1-propyl (2S)-pyrrolidine-2-carboxylate (200 mg; 0.9 mmol) and triethylamine (90 mg; 0.9 mmol) in 20 mL of methylene chloride was stirred for 1 hour and then partitioned between water and a 1:1 mixture of ethyl acetate and hexane. The organic phase was dried, concentrated and purified by column chromatography (50% ethyl acetate/hexane) to obtain 120 mg (36%) of the compound of Example 4 (Compound 4, Table I). 1H NMR (CDCl3, 300 MHz): δ 1.10-1.27 (m, 6H); 1.69-1.75 (m, 4H); 1.94-2.03 (m, 4H); 2.67-2.73 (t, 2H); 3.31-3.44 (m, 3H); 4.12-4.16 (m, 2H); 4.39-4.42 (m, 1H); 7.25-7.34 (m, 1H); 7.25-7.55 (dd, 1H); 8.45 (s, 2H). Analysis calculated for C20H29N3O3—0.6 H2O: C, 64.88; H, 8.22; N, 11.35. Found: C, 64.60; H, 8.18; N, 11.21.

Workup

  1. custompartitioned between water
  2. additiona 1:1 mixture of ethyl acetate and hexane
  3. customThe organic phase was dried
  4. concentrationconcentrated
  5. custompurified by column chromatography (50% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-4436102cd206484399fdae347d2cadd5
Source dataset
uspto-grants-2002_05
Patent number
US06395758B1

Reaction notes

Loading…