The invention provides methods of preparing macrocycles including macrocycle stabilized peptides (MSPs). Macrocycles and MSPs are prepared according to nucleophilic capture of an iminoquinomethide type intermediate generated from a suitably substituted 2-amino-thiazol-5-yl carbinol. The preferred nucleophile may be selected from an electron rich aromatic moiety in the case of macrocycles and, in the case of MSPs, at least one amino acid comprises an electron rich aromatic moiety. In addition, the concept can be extended to other related 5-membered heterocyclic systems in place of the thiazole, such as imidazole or oxazole. The conditions for the generation of the corresponding iminoquinomethide type intermediates may be similar or different than the conditions used for the 2-amino-thiazol-5-yl carbinol.
The invention provides methods of preparing macrocycles including macrocycle stabilized peptides (MSPs). Macrocycles and MSPs are prepared according to nucleophilic capture of an iminoquinomethide type intermediate generated from a suitably substituted 2-amino-thiazol-5-yl carbinol. The preferred nucleophile may be selected from an electron rich aromatic moiety in the case of macrocycles and, in the case of MSPs, at least one amino acid comprises an electron rich aromatic moiety. In addition, the concept can be extended to other related 5-membered heterocyclic systems in place of the thiazole, such as imidazole or oxazole. The conditions for the generation of the corresponding iminoquinomethide type intermediates may be similar or different than the conditions used for the 2-amino-thiazol-5-yl carbinol.
METHODS FOR PREPARING MACROCYCLES AND MACROCYCLE STABILIZED PEPTIDES
申请人:Bristol-Myers Squibb Company
公开号:EP2627662B1
公开(公告)日:2015-09-16
US9169295B2
申请人:——
公开号:US9169295B2
公开(公告)日:2015-10-27
Peptidkonformationen, 40. Cyclische Hexapeptidanaloge des Thymopoietins Synthese und Konformationsstudien
作者:Horst Kessler、Bernhard Kutscher
DOI:10.1002/jlac.198619860509
日期:1986.5.13
cyclischen Hexapeptiden erbrachten unterschiedliche Ergebnisse. Für die beiden Glycin enthaltenden Cyclohexapeptide c1 und c2 muß aufgrund der NMR-spektroskopischen Daten ein Gleichgewicht mehrerer Konformationen angenommen werden. Dagegen sind die D- und L-Valin enthaltenden Cyclohexapeptide c3 und c4 konformativ einheitlich. Die Konformationsanalyse zeigt. daß diese Cyclopeptide in einer βII′βI′-Struktur vorliegen