186584-73-6Relevant articles and documents
Initial Scale-Up and Process Improvements for the Preparation of a Lead Antibacterial Macrolone Compound
Stimac, Vlado,Matanovic Skugor, Maja,Palej Jakopovic, Ivana,Vinter, Adrijana,Ilijas, Marina,Alihodzc, Sulejman,Mutak, Stjepan
, p. 1393 - 1401 (2010)
Macrolones are a novel class of potent antimicrobial agents that consist of a macrolide scaffold to which a quinolone unit is tethered by various linkers to the 4 -O-position of the cladinose sugar. In this paper is described a modified 13-step route to a
Erythromycin derivative and preparing method thereof
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Paragraph 0185-0186, (2019/07/08)
The invention provides an erythromycin derivative. The erythromycin derivative is characterized by comprising a compound in a general formula I or comprising pharmaceutically-acceptable salt formed with the compound in the general formula I and inorganic
4-Quinolone-3-carboxylic acids as cell-permeable inhibitors of protein tyrosine phosphatase 1B
Zhi, Ying,Gao, Li-Xin,Jin, Yi,Tang, Chun-Lan,Li, Jing-Ya,Li, Jia,Long, Ya-Qiu
, p. 3670 - 3683 (2014/07/07)
Protein tyrosine phosphatase 1B is a negative regulator in the insulin and leptin signaling pathways, and has emerged as an attractive target for the treatment of type 2 diabetes and obesity. However, the essential pharmacophore of charged phosphotyrosine or its mimetic confer low selectivity and poor cell permeability. Starting from our previously reported aryl diketoacid-based PTP1B inhibitors, a drug-like scaffold of 4-quinolone-3-carboxylic acid was introduced for the first time as a novel surrogate of phosphotyrosine. An optimal combination of hydrophobic groups installed at C-6, N-1 and C-3 positions of the quinolone motif afforded potent PTP1B inhibitors with low micromolar IC 50 values. These 4-quinolone-3-carboxylate based PTP1B inhibitors displayed a 2-10 fold selectivity over a panel of PTP's. Furthermore, the bidentate inhibitors of 4-quinolone-3-carboxylic acids conjugated with aryl diketoacid or salicylic acid were cell permeable and enhanced insulin signaling in CHO/hIR cells. The kinetic studies and molecular modeling suggest that the 4-quinolone-3-carboxylates act as competitive inhibitors by binding to the PTP1B active site in the WPD loop closed conformation. Taken together, our study shows that the 4-quinolone-3-carboxylic acid derivatives exhibit improved pharmacological properties over previously described PTB1B inhibitors and warrant further preclinical studies.