Synthesis of the four stereoisomers of several 3-(1-aminoethyl)pyrrolidines. Important intermediates in the preparation of quinolone antibacterials
作者:Mel C. Schroeder、John S. Kiely、Edgardo Laborde、Don R. Johnson、Deedee L. Szotek、John M. Domagala、Thomas M. Stickney、Andre Michel、Jeffrey W. Kampf
DOI:10.1002/jhet.5570290620
日期:1992.10
The use of S-α-methylbenzyl as a chiral auxiliary at N1 allowed separation of diastereomeric 2-pyrrolidinones substituted with an ester, ketoester, ketone and oxime at the C4 position. Reduction of each diastereomer of 4-[1-(hydroxyimino)ethyl]-1-(1-phenylethyl)-2-pyrrolidinone, 10s and 10r, provided a pair of epimeric amines, [11sr and 11ss] and [11rs and 11rr], that were separated by chromatography
Synthesis and antibacterial activity of the C-7 side chain of 3-aminoquinazolinediones
作者:Kim M. Hutchings、Tuan P. Tran、Edmund L. Ellsworth、Brian M. Watson、Joseph P. Sanchez、H.D. Hollis Showalter、Michael A. Stier、Martin Shapiro、E. Themis Joannides、Michael Huband、Dai Q. Nguyen、Samarendra Maiti、Tingsheng Li、Jyoti Tailor、George Thomas、Chan Ha、Rajeshwar Singh
DOI:10.1016/j.bmcl.2008.07.117
日期:2008.9
A novel series of bacterial topoisomerase (3-aminoquinazolinediones) inhibitors are described. The side-chain SAR against Gram-positive and Gram-negative organisms as well as DNA gyrase activity is reported.
A highly efficient ruthenium‐catalyzed asymmetric reductive amination (ARA) of racemic β‐keto lactams with molecular hydrogen and ammonium salts is disclosed for the synthesis of enantiomerically pure primary amino lactams through dynamickineticresolution (DKR). By this approach, a range of syn primary β‐amino lactams were obtained in high yields with high chemo‐, enantio‐, and diastereoselectivity
Antibacterial 3-aminoquinazolin-2,4-diones have formula (I) wherein: R1 and R3 include alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclic, and heteroaryl; R5, R6, and R8 include H, alkyl, alkoxy, halo, NO2, CN, NH2, alkyl and dialkylamino; R7 includes hydrogen, alkyl, cycloalkyl, heterocyclic, fused heterocyclic, aryl and fused aryl; J and K are C or N; and pharmaceutically acceptable salts thereof.
[EN] INDIVIDUAL STEREOISOMERS OF 7-[3-(1-AMINOALKYL)-1-PYRROLIDINYL]-QUINOLONES AND NAPHTHYRIDONES AS ANTIBACTERIAL AGENTS
申请人:WARNER-LAMBERT COMPANY
公开号:WO1992009596A1
公开(公告)日:1992-06-11
(EN) Individual stereoisomers of 7-[3-(1-aminoalkyl)-1-pyrrolidinyl]-quinolones and naphthyridones are described, their therapeutic advantages as antibacterial agents, as well as a novel method for the preparation and isolation of such stereoisomers.(FR) L'invention se rapporte à des stéréoisomères individuels de 7-[3-(1-aminoalkyl)-1-pyrrolidinyl]-quinolones et de naphtyridones, à leurs avantages thérapeutiques lorsqu'ils sont utilisés comme agents antibactériens, ainsi qu'à un nouveau procédé servant à préparer et à isoler de tels stéréoisomères.