Amide bond replacements : incorporation of a 2,5,5-trisubstituted imidazoline into dipeptides and into a CCK-4 derivative.
摘要:
Synthetic methodology for the introduction of a 2,5,5-trisubstituted imidazoline ring as an amide replacement into dipeptide derivatives of Phe, Trp, Lys (N-epsilon-CBZ) and Nle is described. This replacement is also incorporated into the Trp-Nle bond of the tetrapeptide CCK-4 derivative Trp-Nle-Asp-Phe-NH2 and the pentagastrin derivative Gly-Trp-Nle-Asp-Phe-NH2.
Amide bond replacements : incorporation of a 2,5,5-trisubstituted imidazoline into dipeptides and into a CCK-4 derivative.
摘要:
Synthetic methodology for the introduction of a 2,5,5-trisubstituted imidazoline ring as an amide replacement into dipeptide derivatives of Phe, Trp, Lys (N-epsilon-CBZ) and Nle is described. This replacement is also incorporated into the Trp-Nle bond of the tetrapeptide CCK-4 derivative Trp-Nle-Asp-Phe-NH2 and the pentagastrin derivative Gly-Trp-Nle-Asp-Phe-NH2.
作者:Ian H. Gilbert、David C. Rees、Alan K. Crockett、Raymond C.F. Jones
DOI:10.1016/0040-4020(95)00273-b
日期:1995.5
This work describes the use of a 2,5,5-trisubstituted imidazoline as an amidebondreplacement. The replacement is incorporated into dipeptide derivatives of Phe, Trp, Lys and Nle and also into the CCK-4 analogue Trp-Nle-Asp-Phe-NH2 and the pentagastrin analogue Gly-Trp-Nle-Asp-Phe-NH2. The amidebondreplacement is synthesised in enantiomerically and diastereomerically pure form.