반응 #49592

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4-chloro-5-hydroxy-7-[1-(tert-butoxycarbonyl)-5-(piperidinomethyl)indol-2-yl]isoindolinone

triphenylphosphine

3-(tert-butyldimethylsiloxy)-1-propanol

DEAD toluene

→

4-chloro-5-[3-(tert-butyldimethylsiloxy)propoxy]-7-[1-(tert-butoxycarbonyl)-5-(piperidin-1-ylmethyl)indol-2-yl]isoindolinone

수율 64.0%

용매

THF

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후처리

1. 1
   기타followed by purification by preparative thin-layer chromatography (chloroform/methanol=6/1)

실험 절차

In a similar manner to Step 1 of Example 149, 4-chloro-5-hydroxy-7-[1-(tert-butoxycarbonyl)-5-(piperidinomethyl)indol-2-yl]isoindolinone (65.7 mg, 0.136 mmol) was dissolved in THF (3.5 mL), and the solution was treated with triphenylphosphine (178 mg, 0.680 mmol), 3-(tert-butyldimethylsiloxy)-1-propanol (0.145 mL, 0.680 mmol) and 40% DEAD-toluene solution (0.310 mL, 0.680 mmol), followed by purification by preparative thin-layer chromatography (chloroform/methanol=6/1) to obtain 4-chloro-5-[3-(tert-butyldimethylsiloxy)propoxy]-7-[1-(tert-butoxycarbonyl)-5-(piperidin-1-ylmethyl)indol-2-yl]isoindolinone (58.2 mg, yield 64%).

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