Diisopropylethylamine → ethyl (2S)-2-(2-{4-[(2S)-2-hydroxy-3-(2-methylbenzothiazol-5-yloxy)propyl]piperazinyl}acetylamino)-2-(4-fluorophenyl)acetate

HRID 1245360

Reaction equation

HRID 1245360 reaction equation
Cl[CH2:2][C:3]([NH:5][C@@H:6]([C:12]1[CH:17]=[CH:16][C:15]([F:18])=[CH:14][CH:13]=1)[C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:4].[CH3:19][C:20]1[S:21][C:22]2[CH:28]=[CH:27][C:26]([O:29][CH2:30][C@@H:31]([OH:39])[CH2:32][N:33]3[CH2:38][CH2:37][NH:36][CH2:35][CH2:34]3)=[CH:25][C:23]=2[N:24]=1.C(N(C(C)C)CC)(C)C>C(O)C>[OH:39][C@H:31]([CH2:30][O:29][C:26]1[CH:27]=[CH:28][C:22]2[S:21][C:20]([CH3:19])=[N:24][C:23]=2[CH:25]=1)[CH2:32][N:33]1[CH2:34][CH2:35][N:36]([CH2:2][C:3]([NH:5][C@@H:6]([C:12]2[CH:17]=[CH:16][C:15]([F:18])=[CH:14][CH:13]=2)[C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:4])[CH2:37][CH2:38]1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 58595334(2S)-1-(2-methylbenzothiazol-5-yloxy)-3-piperazinylpropan-2-olHCID 58719661Ethyl (2S)-2-(2-chloroacetylamino)-2-(4-fluorophenyl)acetate

Product 1

HCID 58719662ethyl (2S)-2-(2-{4-[(2S)-2-hydroxy-3-(2-methylbenzothiazol-5-yloxy)propyl]piperazinyl}acetylamino)-2-(4-fluorophenyl)acetate

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

Ethyl (2S)-2-(2-chloroacetylamino)-2-(4-fluorophenyl)acetate (400 mg, 1.46 mmol), (2S)-3-(2-methylbenzothiazol-5-yloxy)-1-piperazinylpropan-2-ol (560 mg, 1.46 mmol), and 1.26 ml diisopropylethylamine (7.3 mmol) was refluxed in ethanol for 24 hours. Solvent was removed under reduced pressure, and the residue purified by Prep TLC, to provide ethyl (2S)-2-(2-{4-[(2S)-2-hydroxy-3-(2-methylbenzothiazol -5-yloxy)propyl]piperazinyl}acetylamino)-2-(4-fluorophenyl)acetate.

Workup

  1. customSolvent was removed under reduced pressure
  2. customthe residue purified by Prep TLC

Sources & evidence

ORD record
ord-ab6fdded6f034af3954218d3f94ff2c6
Source dataset
uspto-grants-2006_10
Patent number
US07125876B2

Linked notes

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