TBTU,DIEA and HOBt as coupling reagent; And ethanedithiol-phenol-thioanisole- H2O-TFA(2.5:5:5:5:82.5,V/V) as cleav- ing solution.

• 苯酚-乙二硫醇-苯甲硫醚-水-三氟乙酸(2.；5:5:5:5:82