Novel C-2 S/O-and S/N formaldehyde Acetal Derivatives of Carbapenem-3-carboxylic acids and their use as antibiotics and beta-lactamase inhibitors
申请人:——
公开号:US20010031749A1
公开(公告)日:2001-10-18
The compounds of the general formula I
1
wherein R
1
denotes hydrogen, hydroxymethyl or 1-hydroxyethyl, R
2
denotes hydrogen or methyl and R
3
denotes a pharmaceutically acceptable group which is bonded to the remaining part of the molecule by an oxygen-carbon single bond or a nitrogen-carbon single bond, and their pharmaceutically acceptable salts, esters and amide derivatives are broad spectrum antibiotics and &bgr;-lactamase inhibitors.
New formaldehyde derivatives were prepared in good yields by a short and versatile route. Several crystal structures of corresponding thioacetic acid esters and thiols were determined. The thioacetates were cleaved under acidic or basic conditions affording the thiols in high yield, thus introducing the new substance classes of N-mercaptomethyl-alkylcarboxamides, N-mercaptomethylsulfonamides, and