Diisopropylethylamine → tert-butyl 4-(3-chloro-4-(N-(2-hydroxyethyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamido)benzoyl)piperazine-1-carboxylate

HRID 628018Notes

Reaction equation

HRID 628018 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][C:10]=1[N:11]([CH2:28][CH2:29][OH:30])[C:12]([C:14]1[S:27][C:17]2[C:18]3[CH:26]=[CH:25][CH:24]=[CH:23][C:19]=3[O:20][CH2:21][CH2:22][C:16]=2[CH:15]=1)=[O:13])[C:5](O)=[O:6].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[N:64]1([C:70]([O:72][C:73]([CH3:76])([CH3:75])[CH3:74])=[O:71])[CH2:69][CH2:68][NH:67][CH2:66][CH2:65]1>C1COCC1.C(OCC)(=O)C>[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][C:10]=1[N:11]([CH2:28][CH2:29][OH:30])[C:12]([C:14]1[S:27][C:17]2[C:18]3[CH:26]=[CH:25][CH:24]=[CH:23][C:19]=3[O:20][CH2:21][CH2:22][C:16]=2[CH:15]=1)=[O:13])[C:5]([N:67]1[CH2:68][CH2:69][N:64]([C:70]([O:72][C:73]([CH3:76])([CH3:75])[CH3:74])=[O:71])[CH2:65][CH2:66]1)=[O:6]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 143452tert-Butyl piperazine-1-carboxylateHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 579003303-chloro-4-(N-(2-hydroxyethyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamido)benzoic acid

Product 1

HCID 86634847tert-butyl 4-(3-chloro-4-(N-(2-hydroxyethyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamido)benzoyl)piperazine-1-carboxylateYield 22%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 3-chloro-4-(N-(2-hydroxyethyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamido)benzoic acid (0.100 g, 0.225 mmol) in 1 mL of THF was added as a whole HATU (0.094 g, 0.248 mmol) and DIEA (0.078 mL, 0.450 mmol). This reaction mixture was allowed to stir at room temperature for 30 minutes. Next, tert-butyl piperazine-1-carboxylate (0.12 g, 0.22 mmol) was added to the reaction mixture and stirred at room temperature for 1 hour. The reaction mixture was taken into a large volume of ethyl acetate, washed with water, then saline and dried (Na2SO4). The organic was then conc. in vacuo to a solid residue and purified by RP-HPLC to give tert-butyl 4-(3-chloro-4-(N-(2-hydroxyethyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamido)benzoyl)piperazine-1-carboxylate.

Workup

  1. stirringstirred at room temperature for 1 hour
  2. washwashed with water
  3. dry with materialsaline and dried (Na2SO4)
  4. customconc. in vacuo to a solid residue and purified by RP-HPLC

Sources & evidence

ORD record
ord-2c416faf57fb45d38e24b1e998ca5b97
Source dataset
uspto-grants-2016_04
Patent number
US09309265B2

Reaction notes

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