4810-79-1Relevant articles and documents
Efficient Diastereoselective Three-Component Synthesis of Pipecolic Amides
van der Heijden, Gydo,van Schaik, Timo B.,Mouarrawis, Valentinos,de Wit, Martin J. M.,Velde, Christophe M. L. Vande,Ruijter, Eelco,Orru, Romano V. A.
supporting information, p. 5313 - 5325 (2019/06/10)
An efficient Ugi-type three-component reaction (U-3CR) for the synthesis of pipecolic amides is reported. The U-3CR between electronically diverse isocyanides, carboxylic acids and 4-substituted Δ1-piperideines proceeds in a highly diastereoselective fashion. The Δ1-piperideines are obtained by NCS-mediated oxidation of the corresponding 4-substituted piperidines, which in turn are generated by an efficient two-step procedure involving the alkylation of 4-picoline and subsequent catalytic hydrogenation of the pyridine ring. We demonstrate the utility of this U-3CR, in combination with the convertible isocyanide 2-bromo-6-isocyanopyridine, in the synthesis of the anticoagulant argatroban.
Regioselective synthesis of 4-alkylpyridines from pyridine and aldehydes via dipole reversal process of 1,4-dihydropyridine phosphonate
Lee, Phil Ho,Lee, Kooyeon,Shim, Jun Hwan,Lee, Seong Guk,Kim, Sundae
, p. 777 - 784 (2007/10/03)
4-Alkylation of pyridine has been accomplished by the reaction of ylides, derivated from 1,4-dihydropyridine phosphonate via phosphonioalkoxycarbonylation of pyridine with aldehydes and subsequent elimination of diisopropyl phosphate followed by aromatization with potassium tert-butoxide.
LINCOMYCIN DERIVATIVES POSSESSING ANTIBACTERIAL ACTIVITY
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Page 121-122, (2010/02/06)
Novel lincomycin derivatives are disclosed. These lincomycin derivatives exhibit antibacterial activity. As the compounds of the subject invention exhibit potent activities against bacteria, including gram positive organisms, they are useful antimicrobial agents. Methods of synthesis and of use of the compounds are also disclosed.