Morikawa T, Munekata E, Sakakibara S, Noda T, Otani M
Experientia. 1976 Sep 15;32(9):1104-6. doi: 10.1007/BF01927568.
Eel-calcitonin and its [asu1,7]-analog, deamino-dicarba-analog, were synthesized by the conventional solution method. The natural-type product showed 4300 MRC U/mg in the hypocalcemic potency which was comparable to that of the natural hormone isolated from eel. Hormonal activity of the Asu-analog was also as high as 3400 MRC U/mg.