1,2-Dichloroethane → tert-Butyl (4S)-4-({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)azepane-1-carboxylate

HRID 451301Notes

Reaction equation

HRID 451301 reaction equation
[C:1]1([CH2:7][O:8][N:9]2[C:15](=[O:16])[N:14]3[CH2:17][C@H:10]2[CH2:11][CH2:12][C@H:13]3[C:18]([OH:20])=O)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[NH2:21][C@H:22]1[CH2:28][CH2:27][CH2:26][N:25]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:24][CH2:23]1.C(N(CC)CC)C.C1C=CC2N(O)N=NC=2C=1.C(Cl)CCl>ClCCl>[CH2:7]([O:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]([NH:21][C@H:22]1[CH2:28][CH2:27][CH2:26][N:25]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:24][CH2:23]1)=[O:20])[C:1]1[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

7

Reactant 5

HCID 111,2-DichloroethaneHCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 32639843(S)-tert-butyl 4-aminoazepane-1-carboxylateHCID 57389355(2S,5R)-6-(Benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid

Product 1

HCID 86659585tert-Butyl (4S)-4-({[(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]oct-2-yl]carbonyl}amino)azepane-1-carboxylate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (2S,5R)-6-(phenylmethoxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid (51.7 mg, 0.187 mmol) in dry dichloromethane (2 mL) was added a solution of tert-butyl (4S)-4-aminoazepane-1-carboxylate (69 mg, 0.275 mmol), triethylamine (0.090 mL, 0.646 mmol), HOBT (42.5 mg, 0.278 mmol), and EDC (54.7 mg, 0.285 mmol) sequentially at room temperature under nitrogen. The reaction was stirred at room temperature overnight. The reaction mixture was concentrated under vacuum and the residue was purified by HPLC on a 30×100 mm Waters Sunfire column eluted with 15% to 100% CH3CN+0.05% TFA/water+0.05% TFA over 15 minutes to afford the title compound as a white solid after lyophilization.

Workup

  1. concentrationThe reaction mixture was concentrated under vacuum
  2. customthe residue was purified by HPLC on a 30×100 mm Waters Sunfire column
  3. washeluted with 15% to 100% CH3CN+0.05% TFA/water+0.05% TFA over 15 minutes

Sources & evidence

ORD record
ord-311c58bf7b6249ee9b290c560de9e962
Source dataset
uspto-grants-2013_07
Patent number
US08487093B2

Reaction notes

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