1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 69676422, compound

HRID 919616Notes

Reaction equation

HRID 919616 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([NH:9][CH2:10][C:11]([OH:13])=O)[CH:5]=[C:6]([Cl:8])[CH:7]=1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.[CH3:35][CH:36]1[CH2:41][CH2:40][NH:39][CH2:38][CH:37]1[NH:42][C:43](=[O:49])[O:44][C:45]([CH3:48])([CH3:47])[CH3:46].CCN(C(C)C)C(C)C>CN(C=O)C>[Cl:8][C:6]1[CH:5]=[C:4]([NH:9][CH2:10][C:11]([N:39]2[CH2:40][CH2:41][CH:36]([CH3:35])[CH:37]([NH:42][C:43](=[O:49])[O:44][C:45]([CH3:48])([CH3:47])[CH3:46])[CH2:38]2)=[O:13])[CH:3]=[C:2]([Cl:1])[CH:7]=1

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 13138167(3,5-Dichlorophenyl)glycineHCID 45092184HCID 45092184, compound

Product 1

HCID 69676422HCID 69676422, compoundYield 55.7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 2-(3,5-dichlorophenylamino)acetic acid (153 mg, 0.69 mmol) in DMF (5 mL) was added HOBt (141 mg, 1.0 mmol), EDCI (201 mg, 1.0 mmol), tert-butyl 4-methylpiperidin-3-ylcarbamate (150 mg, 0.69 mmol), and DIEA (0.18 mL, 1.3 mmol) at 0° C. Then the reaction mixture was stirred at rt for 5 h, partitioned between EtOAc and water. The organic phase was separated and washed with brine, and concentrated in vacuo to yield the crude product, which was purified by column chromatography using 0-2% MeOH: DCM solvent mixture to yield the titled intermediate (160 mg, 54%) as a thick liquid. 1H NMR (400 MHz, CDCl3): δ 6.92 (s, 1H), 6.49 (s, 1H), 6.38 (s, 1H), 6.29 (s, 1H), 5.22-5.15 (m, 1H), 4.65-4.56 (m, 1H), 4.35-4.16 (m, 2H), 3.25-2.89 (m, 2H), 2.85-2.69 (m, 2H), 1.82-1.75 (m, 2H), 1.69-1.45 (m, 1H), 1.22 and 1.14 (2s, 9H), 1.05 and 0.95 (2d, J=6.8 Hz, 3H). LC-MS: m/z [M+1]=416.

Workup

  1. custompartitioned between EtOAc and water
  2. customThe organic phase was separated
  3. washwashed with brine
  4. concentrationconcentrated in vacuo
  5. customto yield the crude product, which
  6. customwas purified by column chromatography

Sources & evidence

ORD record
ord-06a4be527ef8494bbd61dc68665e11ee
Source dataset
uspto-grants-2016_03
Patent number
US09273028B2

Reaction notes

Loading…