(Cyano-phenyl-methyl)-carbamic acid tert-butyl ester → HCID 15284550、化合物
反応式
[NH2:1][CH:2]1[CH2:6][N:5]([C@@H:7]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[CH3:8])[CH2:4][C:3]1([CH3:16])[CH3:15].[C:17]([O:21][C:22](NC(C1C=CC=CC=1)C#N)=[O:23])([CH3:20])([CH3:19])[CH3:18]>O1CCCC1>[C:17]([O:21][C:22]([NH:1][CH:2]1[CH2:6][N:5]([C@@H:7]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[CH3:8])[CH2:4][C:3]1([CH3:15])[CH3:16])=[O:23])([CH3:20])([CH3:19])[CH3:18]参加物
4
実験手順
To an ice cooled solution of 3.69 g of 4-amino-3,3-dimethyl-1-[1-(R)-phenylethyl]-pyrrolidine in 40 ml of anhydrous tetrahydrofuran there was added 4.92 g of 2-(tert-butoxycarbonylamino)-2-phenylacetonitrile and the mixture was stirred at room temperature for 1 hr. Solvent was removed under reduced pressure, and to the residue there was added ethyl acetate. The mixture was washed with a 1N sodium hydroxide aqueous solution three times and then dried. Solvent was then removed under reduced pressure. The residue was purified through column chromatography using 200 g of silica gel in a column with chloroform as the eluant containing from 1% to 5% methanol to yield 4.32 g of the titled compound.