prov:value
| - Examples of such readily removable carboxy-protecting groups include moieties such as C1-6 alkyl, diphenylmethyl (benzyhydryl), 2-naphthylmethyl, 4-pyridylmethyl, phenacyl, acetonyl, 2,2,2-trichloroethyl, silyl such as trimethylsilyl and t-butyldimethylsilyl, phenyl, ring substituted phenyl, e.g., 4-chlorophenyl, tolyl, and t-butylphenyl, phenyl C1-6 alkyl, ring substituted phenyl C1-6 alkyl, e.g.
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