Synthesis of spiro-annelated pyroglutamides by the Ugi reaction
摘要:
Three component Ugi reaction between 1(2-oxoethyl)cycloalkanecarboxylic acids, amines and isocyanides affords spirocyclic N-substituted 5-carbamoyl-2-pyrrolidones.
Synthesis of Tetrazole-substituted Spirocyclic γ-lactams by One-pot Azido-Ugi Reaction–cyclization
摘要:
1-Ethoxycarbonyl-1-(2-oxoethyl)cycloalkanes in the azido-Ugi reaction with primary amines, isocyanides and TMS-N-3 afford 3-(tetrazol-5-yl)-2-azaspiro [4.n]alkan-1-ones.