4-Chloro-1-butanol → HCID 68591650, 화합물

온도

0 °C

(2S,3aS,6aS)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)octahydrocyclopenta[b]pyrrole-2-carboxylic acid (0.250 g, 0.66 mmol) and 4-chloro-1-butanol (0.1 ml, 0.99 mmol) were dissolved under nitrogen in CH2Cl2 (5 ml) and the mixture was cooled to 0° C. N-ethyl-N′-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) (0.190 g, 0.99 mmol) and N,N-dimethylaminopyridine (DMAP) (0.016 g, 0.13 mmol) were added and the reaction was slowly warmed to room temperature and stirred for 4 h. Then the mixture was diluted with CH2Cl2 (10 ml) and washed with 5% aqueous NaHCO3, 5% aqueous Na2HPO4 and brine. The organic layer was dried over sodium sulphate, concentrated under reduced pressure and purified by flash chromatography (n-hexane/EtOAc 80:20 as eluent) affording the title compound as an oil (0.14 g, 45%)

1. temperaturethe reaction was slowly warmed to room temperature
2. washwashed with 5% aqueous NaHCO3, 5% aqueous Na2HPO4 and brine
3. dry with materialThe organic layer was dried over sodium sulphate
4. concentrationconcentrated under reduced pressure
5. custompurified by flash chromatography (n-hexane/EtOAc 80:20 as eluent)

ORD 기록

ord-d3794a66b79d486486f2f090460aaf7e

출처 데이터셋

uspto-grants-2016_02

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US09266820B2