Diisopropylethylamine → HCID 59314208, compound
Reaction equation
[C@@H:1]1([C:11]([OH:13])=O)[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH2:4][CH2:3][CH2:2]1.[CH2:14]([O:16][C:17]([C:19]1([NH2:28])[CH2:27][C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[CH2:20]1)=[O:18])[CH3:15].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>CN(C=O)C>[CH2:14]([O:16][C:17]([C:19]1([NH:28][C:11]([C@@H:1]2[C:10]3[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=3)[CH2:4][CH2:3][CH2:2]2)=[O:13])[CH2:27][C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[CH2:20]1)=[O:18])[CH3:15]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of (S)-1,2,3,4-tetrahydro-naphthalene-1-carboxylic acid (300 mg, 1.7 mmol), 2-amino-indan-2-carboxylic acid ethyl ester (349 mg, 1.7 mmol), HATU (760 mg, 2 mmol) in anhydrous DMF (8 mL) is added DIPEA (330 μL, 2 mmol). The resulting solution is stirred at RT overnight. After the removal of DMF in vacuo, the residue is dissolved in EtOAc (100 mL) and washed with water (1×10 mL) and brine (2×10 mL). The organic layer is dried over anhydrous Na2SO4 and concentrated in vacuo. The residue is purified by flash column chromatography (120 g silica gel, gradient elution: 5%-50% EtOAc in heptane) to give a pure product (69) as white solid (615 mg, 100%).
Workup
- customAfter the removal of DMF in vacuo
- dissolutionthe residue is dissolved in EtOAc (100 mL)
- washwashed with water (1×10 mL) and brine (2×10 mL)
- dry with materialThe organic layer is dried over anhydrous Na2SO4
- concentrationconcentrated in vacuo
- customThe residue is purified by flash column chromatography (120 g silica gel, gradient elution: 5%-50% EtOAc in heptane)
Sources & evidence
- ORD record
- ord-59fd18042ac64579a5886b26795b0c59
- Source dataset
- uspto-grants-2013_10
- Patent number
- US08569535B2
Reaction notes
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