Zobrazeno 1 - 10
of 110
pro vyhledávání: '"pyrrolidine ring"'
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 80, Iss 9, Pp 942-946 (2024)
The cyclic peptide cyclo(Val-Leu-Leu-D-Phe-Pro)2 (peptide 1) was specifically designed for structural chemistry investigations, drawing inspiration from Gramicidin S (GS). Previous studies have shown that Pro residues within 1 adopt a down-puckering
Externí odkaz:
https://doaj.org/article/1b8653b7c5694aa6a8c36fe9fb50f242
Akademický článek
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Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 8, Pp 775-779 (2021)
The molecule of the title compound, C24H16Cl12N2O4, is generated by a crystallographic inversion centre at the midpoint of the central C—C bond. A kink in the molecule is defined by a torsion angle of −169.86 (15)° about this central bond of the
Externí odkaz:
https://doaj.org/article/e50dd4baaedd4c75b4a5795967763609
Autor:
Dmitriy F. Mertsalov, Maryana A. Nadirova, Elena A. Sorokina, Marina A. Vinokurova, Sevim Türktekin Çelikesir, Mehmet Akkurt, Irina A. Kolesnik, Ajaya Bhattarai
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 3, Pp 260-265 (2021)
The title compound, C24H24N2O5S, crystallizes with two independent molecules (A and B) in the asymmetric unit. In the central ring systems of both molecules, the tetrahydrofuran rings adopt envelope conformations, the pyrrolidine rings adopt a twiste
Externí odkaz:
https://doaj.org/article/7e85caa8e1624f8ca6fcd658c16ecfed
Autor:
Dmitriy F. Mertsalov, Vladimir P. Zaytsev, Kuzma M. Pokazeev, Mikhail S. Grigoriev, Alexander V. Bachinsky, Sevim Türktekin Çelikesir, Mehmet Akkurt, Sixberth Mlowe
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 3, Pp 255-259 (2021)
The title compound, C15H15Br2NO2, crystallizes with two molecules in the asymmetric unit of the unit cell. In both molecules, the tetrahydrofuran rings adopt an envelope conformation with the O atom as the flap and the pyrrolidine rings adopt an enve
Externí odkaz:
https://doaj.org/article/6706eea9d1af41689b2159269718f38e
Autor:
Dmitriy F. Mertsalov, Maryana A. Nadirova, Lala V. Chervyakova, Mikhail S. Grigoriev, Evgeniya R. Shelukho, Sevim Türktekin Çelikesir, Mehmet Akkurt, Sixberth Mlowe
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 3, Pp 237-241 (2021)
In the title compound, C15H15Br2NO2, two bridged tetrahydrofuran rings adopt envelope conformations with the O atom as the flap. The pyrrolidine ring also adopts an envelope conformation with the spiro C atom as the flap. In the crystal, the molecule
Externí odkaz:
https://doaj.org/article/396abdac0002453e8046f116969aa9db
Autor:
Vladimir P. Zaytsev, Lala V. Chervyakova, Elena A. Sorokina, Kirill A. Vasilyev, Sevim Türktekin Çelikesir, Mehmet Akkurt, Ajaya Bhattarai
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 2, Pp 86-90 (2021)
In the title compound, C20H19NO5, the central six-membered ring has a slightly distorted half-chair conformation, with puckering parameters of QT = 0.3387 (11) Å, θ = 49.11 (19)° and φ = 167.3 (2)°. The conformation of the fused pyrrolidine ring
Externí odkaz:
https://doaj.org/article/a4f13951cbd449349d86686450108870
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
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Publikováno v:
IUCrData, Vol 3, Iss 12, p x181740 (2018)
In the title compound, C11H8Cl2N2O3, the plane of the pyrrolidine ring (r.m.s. deviation = 0.065 Å) makes a dihedral angle of 52.9 (2)° with the plane of the benzene ring. The least-squares plane of the central amide fragment makes dihedral angles
Externí odkaz:
https://doaj.org/article/4db7564fb1194338a87f70df354352e6
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications
The asymmetric unit contains one-half of the formula unit of the title compound. The crystal structure is stabilized by intermolecular C—H⋯O, C—H⋯Cl and C—Cl⋯π interactions, and short intermolecular Cl⋯O and Cl⋯Cl contacts, for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::874f1a05f2272c0b51f86c5da84d133e
http://europepmc.org/articles/PMC8340976
http://europepmc.org/articles/PMC8340976