Are there alternatives to N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-D-glutamic acid (CAS: 104091-09-0) in synthesis?

Alternative reagents for synthesizing similar functionalities include fluorenylmethyl chloroformate and other protected amino acids. These can serve as viable substitutes depending on the specific synthetic route and desired product characteristics. Researchers should consider the availability and cost of these alternatives when planning their experiments.