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Recent News
11 April 2024
Press Release
Cambridge, UK and Kyiv, Ukraine, 11 April 2024: Metrion Biosciences Limited (“Metrion”), the specialist ion channel and cardiac safety screening contract research organisation (CRO) and drug discovery company, and Enamine Ltd (“Enamine”), the global leader in supplying small molecules and early drug discovery services, announced that Metrion has enhanced its High Throughput Screening (HTS) services with the addition of access to Enamine’s compound libraries.
27 March 2024
Press Release
March, 2024, Kyiv, Ukraine. Enamine Ltd, the global leader in supplying small molecules and early drug discovery services, announces the expansion of its library synthesis capabilities with a focus on Enamine REAL compounds to further support the growing demands of agricultural and pharmaceutical companies, research institutes, and drug discovery centers.
01 March 2024
News
We are excited to announce a strategic collaboration between Enamine, the world's leading provider of chemical building blocks, compound libraries, and biology services, and Genez International, a prominent enterprise with 15 years of experience in cross-border supply management, biopharmaceutical research and development, semiconductor equipment, and high-definition digital imaging systems.
Synthesis
2020, 52 (13), 1915-1926
DOI:
10.1055/s-0039-1707987
Stepaniuk O.; Rudenko T.; Vashchenko B.; Matvienko V.; Kondratov I.; Tolmachev A.; Grygorenko O.
An efficient approach to the preparation of pyridine carboxylates fused with 5- or 6-membered heteroaromatic rings is described. The method relied on the Combes-type condensation of the low-molecular-weight β-alkoxyvinyl glyoxylates as CCC bis-electrophiles and with heteroaromatic amines as NCC binucleophiles. In most experiments, β-alkoxyvinyl glyoxylates without additional substituent at the β position led to the corresponding α-pyridine carboxylates (67–87% yield). In the case of β-methyl-substituted derivative, γ-pyridine carboxylates were obtained in 84–99% yield. It was found that regioselectivity of the condensation could be efficiently tuned by changing conditions, such as solvents and acidic additives (HOAc, DMSO or HCl–1,4-dioxane).