반응 #992725

반응 방정식

50

17-(5-bromo-6-methoxyisoquinolin-1-yloxy)-13-methyl-2,14-dioxo-3,13,15-triazatricyclo[13.3.0.04,6]octadec-7-ene-4-carboxylic acid

carbonyldiimidazole

cyclopropylsulfonamide

DBU

→

title product 51

수율 77.8%

N-[17-(5-bromo-6-methoxyisoquinolin-1-yloxy)-13-methyl-2,14-dioxo-3,13,15-triaza-tricyclo[13.3.0.04,6]octadec-7-ene-4-carbonyl](cyclopropyl)sulfonamide

수율 77.8%

용매

THF

반응 조건

후처리

1. 1
   온도at reflux under nitrogen for 2 h
2. 2
   기타can be isolated
3. 3
   온도cooled to room temperature
4. 4
   기타The reaction mixture was quenched with water
5. 5
   추출extracted with AcOEtethyl acetate
6. 6
   건조dried (MgSO4)
7. 7
   여과filtered
8. 8
   기타evaporated
9. 9
   기타The crude material was purified by column chromatography (CH2Cl2/EtOAc, 95:5)
10. 10
    기타The solid obtained
11. 11
    기타was triturated in water
12. 12
    여과filtered
13. 13
    기타dried under high vacuum
14. 14
    기타triturated in diethylether
15. 15
    기타dried again under high vacuum

실험 절차

A solution of 50 (151 mg, 0.257 mmol) and carbonyldiimidazole (162 mg, 0.437 mmol) in dry THF (10 mL) was stirred at reflux under nitrogen for 2 h. Optionally, the azalactone derivative, if desired, can be isolated. Then, the reaction mixture was cooled to room temperature and cyclopropylsulfonamide (58 mg, 0.482 mmol) and DBU (76 mg, 0.502 mmol) were added. The resulting solution was stirred at 50° C. for 12 h, then cooled to room temperature. The reaction mixture was quenched with water and extracted with AcOEtethyl acetate, dried (MgSO4), filtered and evaporated. The crude material was purified by column chromatography (CH2Cl2/EtOAc, 95:5). The solid obtained was triturated in water, filtered, dried under high vacuum, triturated in diethylether and dried again under high vacuum to give 138 mg (77%) of the title product 51 as a white powder: m/z=691 (M+H)+; 1H-NMR (CDCl3): 10.70 (br s, 1H), 8.12 (d, J=9.1 Hz, 1H), 7.97 (d, J=6.3 Hz, 1H), 7.54 (d, J=6.3 Hz, 1H), 7.21 (d, J=9.1 Hz, 1H), 6.70 (bs, 1H), 5.88 (bs, 1H), 5.74 (dd, J=17.3 Hz, 8.3 Hz, 1H), 5.16 (t, J=10.4 Hz, 1H), 4.74 (dd, J=9.4 Hz, 7.3 Hz, 1H), 4.11-3.98 (m, 4H), 3.69-3.55 (m, 2H), 3.27-3.10 (m, 1H), 3.02-2.89 (m, 1H), 2.83 (s, 3H), 2.58-2.35 (m, 3H), 2.29-2.13 (m, 1H), 2.11-1.92 (m, 2H), 1.75-0.76 (m, 9H).

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