| 摘要 |
New hypocalcaemic peptides are disclosed of the formula <IMAGE> wherein X represents H for the replacement of the N alpha amino group or acyl groups for the acylation of the N alpha amino group. The acyl groups are carboxylic acids expecially formic, acetic, propionic, buteric, valeric, hexanoic, heptanoic, octanoic, and nonanoic acids or their respective isomers, L-lactic acid and the half amides of malonic, succinic, glutaric and adipic acids. Y is L-valine, glycine, L-methionine, L-alanine, L-leucine or L-isoleucine. |
