L-Proline → HCID 20691580, compound

HRID 379242Notes

Reaction equation

HRID 379242 reaction equation
[CH3:1][O:2][C:3](=[O:15])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][C:12](=O)[CH3:13].[NH2:16][C:17]1[C:22]([CH:23]=O)=[CH:21][CH:20]=[CH:19][N:18]=1.N1CCC[C@H]1C(O)=O>C(O)C>[CH3:1][O:2][C:3](=[O:15])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][C:12]1[CH:13]=[CH:23][C:22]2[C:17](=[N:18][CH:19]=[CH:20][CH:21]=2)[N:16]=1

Participants

5

Procedure

A mixture of 13-2 (9.2 g, 43 mmol), 1-3 (5.3 g, 43 mmol), proline (2.5 g, 22 mmol), and ethanol (215 mL) was heated to reflux for 20 h. The cooled reaction mixture was concentrated and the residue purified by flash chromatography (silica, EtOAc) to give 13-3 as a yellow oil.

Workup

  1. temperaturewas heated
  2. temperatureto reflux for 20 h
  3. customThe cooled reaction mixture
  4. concentrationwas concentrated
  5. customthe residue purified by flash chromatography (silica, EtOAc)

Sources & evidence

ORD record
ord-30ae78dbc64b4100aa4e2897a7331601
Source dataset
uspto-grants-2001_10
Patent number
US06297249B1

Reaction notes

Loading…