  Motivated by the paper (Beals, Sattinger and Szmigielski, Adv. Math. 154
(2000) 229--257), we propose an extension of the Camassa-Holm equation, which
also admits the multipeakon solutions. The novel aspect is that our approach is
mainly based on classic determinant technique. Furthermore, the proposed
equation is shown to possess a nonisospectral Lax pair.
