117069-18-8Relevant articles and documents
PYRIDOPYRIMIDINE DERIVATIVES USEFUL AS KRAS G12C AND KRAS G12D INHIBITORS IN THE TREATMENT OF CANCER
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Paragraph 0322-0323, (2021/04/30)
Provided herein are KRAS G12C and KRAS G12D inhibitors, composition of the same, and methods of using the same. These inhibitors are useful for treating a number of disorders, including pancreatic, colorectal, and lung cancers.
Novel irreversible epidermal growth factor receptor inhibitors by chemical modulation of the cysteine-trap portion
Carmi, Caterina,Cavazzoni, Andrea,Vezzosi, Stefano,Bordi, Fabrizio,Vacondio, Federica,Silva, Claudia,Rivara, Silvia,Lodola, Alessio,Alfieri, Roberta R.,La Monica, Silvia,Galetti, Maricla,Ardizzoni, Andrea,Petronini, Pier Giorgio,Mor, Marco
scheme or table, p. 2038 - 2050 (2010/08/20)
Irreversible EGFR inhibitors can circumvent acquired resistance to first-generation reversible, ATPcompetitive inhibitors in the treatment of non-small-cell lung cancer. They contain both a driver group, which assures target recognition, and a warhead, generally an acrylamide or propargylamide fragment that binds covalently to Cys797 within the kinase domain of EGFR. We performed a systematic exploration of the role for the warhead group, introducing different cysteine-trapping fragments at position 6 of a traditional 4-anilinoquinazoline scaffold. We found that different reactive groups, including epoxyamides (compounds 3-6) and phenoxyacetamides (compounds 7-9), were able to irreversibly inhibit EGFR. In particular, at significant lower concentrations than gefitinib (1), (2R,3R)N-(4-(3-bromoanilino)quinazolin-6-yl)- 3 -(piperidin-1 -ylmethyl)oxirane-2-carboxamide (6) inhibited EGFR autophosphorylation and downstream signaling pathways, suppressed proliferation, and induced apoptosis in gefitinib-resistant NSCLC H1975 cells, harboring the T790M mutation in EGFR.
First asymmetric total synthesis of synerazol, an antifungal antibiotic, and determination of its absolute stereochemistry
Hayashi, Yujiro,Shoji, Mitsuru,Mukaiyama, Takasuke,Gotoh, Hiroaki,Yamaguchi, Shinpei,Nakata, Munetaka,Kakeya, Hideaki,Osada, Hiroyuki
, p. 5643 - 5654 (2007/10/03)
By synthesizing two possible diastereomers, the first asymmetric total synthesis of synerazol, an antifungal antibiotic, has been accomplished, allowing determination of its absolute stereochemistry. A more practical second generation route was also estab
Organocatalytic asymmetric epoxidation reactions in water-alcohol solutions
Zhuang, Wei,Marigo, Mauro,Jorgensen, Karl Anker
, p. 3883 - 3885 (2007/10/03)
The diastereo- and enantioselective organocatalytic epoxidation of α,β-unsaturated aldehydes in aqueous solutions is presented. By the screening of the reaction conditions for the epoxidation of cinnamic aldehyde applying hydrogen peroxide as the oxidant and 2-[bis-(3,5-bis-trifluoromethyl- phenyl)-trimethylsilanyloxy-methyl]-pyrrolidine as the catalyst, a highly stereoselective reaction has been developed. The scope of the diastereo- and enantioselective organocatalytic epoxidation in aqueous solutions is documented by the asymmetric epoxidation of α,β-unsaturated aldehydes with enantioselectivities up to 96% ee. The Royal Society of Chemistry 2005.
A Novel Synthesis of the Monobactam Antibiotic Carumonam
Manchand, Percy S.,Luk, Kin-Chun,Belica, Peter S.,Choudhry, Satish C.,Wei, Chung Chen,Soukup, Milan
, p. 5507 - 5512 (2007/10/02)
A novel synthesis of the monobactam 4, a precursor of the antibiotic carumonam (3), has been achieved via the epoxide methyl (2R,3S)-4-acetoxy-2,3-epoxybutyrate (10).The latter was prepared from calcium L-threonate in three steps and 85percent overall yield.In a related study, ethyl (2R,3S)-4-hydroxy-2,3-epoxybutyrate (17) was prepared from L-(+)-tartaric acid in 45percent overall yield.Treatment of the sodium salt derived from 10 or 17 with ammonia led to a stereo- and regiospecific opening of the oxirane ring to give 20, after esterification, amide formation, and protection of the amino group.Conversion of 20 into 4 was accomplished by selective protection of the primary hydroxy group with chloroacetyl chloride, mesylation, sulfonation with 2-picoline-SO3, and ring closure with potassium bicarbonate.