Diisopropyl Ether → HCID 178501450, compound

Participants

Reaction Steps

77 mg of H-Arg-Arg-Pro-Phe-His-Sta-Sar-His-Lys(Boc)-OMe (from Example 17) are dissolved in 0.4 ml of 95% strength TFA and left to stand for 25 minutes. By adding 5 ml of diisopropyl ether and filtering off the precipitate, H-Arg-Arg-Pro-Phe-His-Sta-Sar-His-Lys-OMe is obtained in the form of an amorphous, hygroscopic powder; Rf (D)=0.04; Rf (M)=0.04; Rf (O)=0.05.

Provenance & Evidence