Acetic Acid → (1R,2S)-5'-(4-chlorophenyl)-2,6',7'-trimethylspiro[cyclopropane-1,3'-thieno[2,3-e][1,4]diazepin]-2'(1'H)-one

A round bottomed flask was charged with 9H-fluoren-9-yl)methyl-(1R,2S)-1-(3-(4-chlorobenzoyl)-4,5-dimethylthiophen-2-ylcarbamoyl)-2-methylcyclopropylcarbamate (225 mg, 0.385 mmol) and a stir bar. DMF (16 mL, 0.02 M) was added, followed by piperidine (4 mL, 40.4 mmol), and the solution was stirred at room temperature 15 min. The solution was washed with water, extracted twice with ethyl acetate, washed with brine, and concentrated before being taken up in ethanol (25 mL). Acetic acid (12.5 mL, 218 mmol) was added, and the solution was stirred at 90° C. 3 h before being concentrated with celite and purified by column chromatography to give (1R,2S)-5′-(4-chlorophenyl)-2,6′,7′-trimethylspiro[cyclopropane-1,3′-thieno[2,3-e][1,4]diazepin]-2′(1′H)-one (Compound 218) as a light yellow amorphous solid (96 mg). LRMS (M+H)+: 345 m/z.

1. washThe solution was washed with water
2. extractionextracted twice with ethyl acetate
3. washwashed with brine
4. concentrationconcentrated
5. stirringthe solution was stirred at 90° C
6. concentration3 h before being concentrated with celite
7. custompurified by column chromatography

ORD 기록

ord-6685c56ab7154272a69a1d233e76ca7d

출처 데이터셋

uspto-grants-2016_02

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US09249161B2