e prepared by repeating the steps 1 to 3 in Scheme 2 before the last Wittig reaction. [0220] The representative compounds of the Formula (IV) [wherein Y is a single bond or ???CH2???; R4, R7, and X are as defined above] are: [0221] HO2C???CH2CH(NHFmoc)???(CH2)12CH3, [0222] HO2C???CH2CH(N(CH3)Fmoc)???(CH2)14CH3, and the like. [0223] The first peptide bond formation reaction as well as the cyclizati