1-Adamantylaspartate

1-Adamantylaspartate is a newly developed β-β-1-imidopropionic acid used to synthesize the C-terminal octapeptide of the β subunit of human chorionic gonadotropin (hCG) and the hexadecapeptide of the α subunit of the insulin receptor (30-55) by conventional solution methods and solid phase methods, aiming to inhibit the formation of asparagine during the synthesis of asparagyl peptides. Studies have shown that β-β-1-imidopropionic acid is an effective protector of the β-carboxyl function of aspartic acid residues.