Diisopropylethylamine → methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-((1R,5S)-3-oxa-9-azabicyclo[3.3.1]nonan-9-yl)ethyl)amino)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

온도

120 °C

A mixture of methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-chloroethyl)amino)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate (20 mg, 0.033 mmol), (1R,5S)-3-oxa-9-azabicyclo[3.3.1]nonane (16.78 mg, 0.132 mmol) and Hunig's Base (0.029 mL, 0.165 mmol) in DMSO (1 mL) was heated to 120° C. for 1 h. The reaction mixture was quenched with distilled water (2 mL), extracted with dichloromethane (2×2 mL), dried over sodium sulfate, filtered and concentrated under reduced pressure to provide methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-((2-((1R,5S)-3-oxa-9-azabicyclo[3.3.1]nonan-9-yl)ethyl)amino)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate as a brown solid which was taken to the next step without further purification.

1. customThe reaction mixture was quenched with distilled water (2 mL)
2. extractionextracted with dichloromethane (2×2 mL)
3. dry with materialdried over sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure

ORD 기록

ord-d2fde35d94f346a285c3faa887c9d8f3

출처 데이터셋

uspto-grants-2014_11

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US08889854B2