4-Methylmorpholine → HCID 57135847, compound
Reaction equation
FC(F)(F)C(O)=O.[CH2:8]([NH:15][C:16](=[O:29])[CH:17]([NH2:28])[C:18]([NH:20][CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)=[O:19])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.[Br:30][C@H:31]([CH2:35][C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1)[C:32](O)=[O:33].CN1CCOCC1.Cl.C(N=C=NCCCN(C)C)C.O.ON1C2C=CC=CC=2N=N1>ClCCl.C(OCC)(=O)C.CCCCCC>[CH2:21]([NH:20][C:18](=[O:19])[CH:17]([NH:28][C:32](=[O:33])[C@H:31]([Br:30])[CH2:35][C:36]1[CH:37]=[CH:38][CH:39]=[CH:40][CH:41]=1)[C:16]([NH:15][CH2:8][C:9]1[CH:10]=[CH:11][CH:12]=[CH:13][CH:14]=1)=[O:29])[C:22]1[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=1Participants
8
Reactant 5
Product 1
Reagents, catalysts & solvents 2
Procedure
Combine N,N′-dibenzyl-2-aminomalonamide trifluoroacetic acid salt (0.41 g, 1.04 mmol), (R)-2-bromo-3-phenylpropionic acid (0.262 g, 1.15 mmol), N-methylmorpholine (0.23 mL, 2.08 mmol), 1-ethyl-3-(3-(dimethylamino)propyl)carbodiimide hydrochloric acid salt (0.22 g, 1.15 mmol), and 1 -hydroxybenztriazole hydrate (0.155 g, 1.15 mmol) in dichloromethane (5 mL). After 18 hours, extract with an aqueous 5% sulfuric acid solution, a saturated sodium bicarbonate solution, and then brine. Dry the organic layer over Na2SO4, filter, and evaporate in vacuo to give a residue. Chromatograph the residue on silica gel eluting with 1/1 ethyl acetate/hexane to give the title compound.
Workup
- extractionextract with an aqueous 5% sulfuric acid solution
- dry with materialDry the organic layer over Na2SO4
- filtrationfilter
- customevaporate in vacuo
- customto give a residue
Sources & evidence
- ORD record
- ord-ff90cc5c79044f6d9a1786a54b26e194
- Source dataset
- uspto-grants-2001_12
- Patent number
- US06329550B1
Reaction notes
Loading…