176
Example 19
O
O O
CO2MeHO2C DPPA, Et3N, t-BuOH
80 oC, 16 h, 64%
O
O O
CO2MeBocHN
Example 211
OOCO2H
EtO(CO)Cl, then NaN3EtOH, PhH, reflux, 55% OO
NHCO2Et
References
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concerts and com-posed music.
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