title: Syntheses and biological activities of new carbapenem derivatives.
abstract: 3-beta-Alanyloxymethyl, 3-glycyloxymethyl and 3-methyl derivatives of 6-(1-hydroxyethyl)-carbapenems, (VIIa, VIIb and VIII), and 3-methyl-6-(1-hydroxyethyl)carbapenam (IX) were synthesized from 3-(1-tert-butyldimethylsilyloxyethyl)-4-(3-chloro-2-oxopropyl) -2-azetidinone (I). The antibacterial activities of these compounds proved that the delta 2 double bond was essential for the appearance of bioactivity, whereas the amino group on the C-3 side chain was not necessary.
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D007769:Lactams; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests
chemical_list: D000900:Anti-Bacterial Agents; D007769:Lactams