Cesium fluoride → (S)-2-tert-butyl 3-ethyl 8-(2-amino-6-((R)-2,2,2-trifluoro-1-(3'-(methylsulfonyl)-4-(prop-1-en-1-yl)-[1,1'-biphenyl]-2-yl)ethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate

温度

130 °C

To a solution of (S)-2-tert-butyl 3-ethyl 8-(2-amino-6-((R)-1-(4-chloro-3′-(methylsulfonyl)-[1,1′-biphenyl]-2-yl)-2,2,2-trifluoroethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate (500 mg, 0.65 mmol) in DMF (10 mL) was added tributyl(prop-1-enyl)stannane (258 mg, 0.78 mmol), Pd(t-Bu3P)2 (33 mg, 0.065 mmol), and CsF (217 mg, 1.43 mmol). The reaction was heated to 130° C. in a sealed tube for 3 h, then cooled to RT. The reaction mixture was partitioned between water and CH2Cl2, and extracted. The combined organic layers were washed with brine, dried over Na2SO4, filtered, and concentrated in vacuo. Purification by normal phase silica gel column (EtOAc/heptane) provided (S)-2-tert-butyl 3-ethyl 8-(2-amino-6-((R)-2,2,2-trifluoro-1-(3′-(methylsulfonyl)-4-(prop-1-en-1-yl)-[1,1′-biphenyl]-2-yl)ethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate as a white solid.

1. temperaturecooled to RT
2. customThe reaction mixture was partitioned between water and CH2Cl2
3. extractionextracted
4. washThe combined organic layers were washed with brine
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated in vacuo
8. customPurification by normal phase silica gel column (EtOAc/heptane)

ORDレコード

ord-f1507be2a91445a5be9053237aee6a56

出典データセット

uspto-grants-2015_12

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US09199994B2