ChinaPeptides assisted the Biological Sciences of China Agricultural University to complete the major national research projects successfully. ChinaPeptides undertake the part of chemical synthesis of this subject independently. We used the combining method of solid phase synthesis and liquid phase synthesis, after more than two months, we finally got the desired polypeptide from the method of seven steps liquid phase reaction to get a variety analogues of cysteine - ( 3- acetonitrile) indole, and then, used the solid phase synthesis method. This novel synthesis method was initiated by ChinaPeptides first, which fully demonstrated our R & D capabilities.