4-Isopropyloxycarbonyloxybenzyloxycarbonyl, Z(4-PriOCO), a new amino-protecting group stable under the conditions which cause cleavage of the t-butoxy-carbonyl and 2-(p-biphenylyl)isopropyloxycarbonyl groups, can be removed in a slightly alkaline medium via a 1,6-elimination, by hydrogenolysis, or by HBr in acetic acid.
M. Wakselman and E. Guibé-Jampel, J. Chem. Soc., Chem. Commun., 1973, 593 DOI: 10.1039/C39730000593
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