10074
References
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1,2-dichloroethane at 25°C for 1 hour and then at 83°C until completion (1 hour at 0°C in CH2Cl2 was sufficient
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THF, was treated with 1.1 equiv. of NaH and 1.2 equiv. of di-tert-butyl dicarbonate, in that order, for 2 hours
at 25°C and then hydrolyzed with 2 equiv. Cs2CO3 in 4:1 aqueous methanol to regenerate the inverted N-Boc
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