申请人:Roussel Uclaf
公开号:US04900728A1
公开(公告)日:1990-02-13
Novel syn isomers of racemates and optical isomers of 3-amino-2-oxo-azetidine-1-sulfonic acids of the formula ##STR1## wherein R is selected from the group consisting of hydrogen linear or branched optionally substituted alkyl of 1 to 12 carbon atoms and optionally substituted alkenyl and alkynyl of 2 to 12 carbon atoms, R.sub.1 is --(CH.sub.2).sub.n --X, n is an integer from 1 to 4, X is selected from the group consisting of halogen, --CN, --OR', --SR.sub.1 ", azido, thiocyanate, isothiocyanate, and ##STR2## is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R" is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and a heterocycle and R' and R" are individiually selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and taken together with the nitrogen to which they are attached form a heterocycle and A.sup.1 is selected from the group consisting of hydrogen, and metal cations and their nontoxic, pharmaceutically acceptable acid addition salts, the wavy line indicating the cis form, trans form or cis trans forms having antibiotic properties.
合成新的同分异构体和3-氨基-2-氧代氮杂环-1-磺酸的光学异构体的方法,其中R从氢、1至12碳原子的线性或支链可选取代烷基和2至12碳原子的可选取代烯基和炔基组成的群中选择,R.sub.1为--(CH.sub.2).sub.n --X,n为1至4之间的整数,X从卤素、--CN、--OR'、--SR.sub.1"、叠氮基、硫氰酸基、异硫氰酸基和##STR2##中选择,其中##STR2##从氢和1至4碳原子的烷基组成的群中选择,R"从氢、1至4碳原子的烷基和杂环组成的群中选择,R'和R"分别从氢和1至4碳原子的烷基组成的群中选择,并与它们连接的氮一起形成一个杂环,A.sup.1从氢和金属阳离子及其无毒、药学上可接受的酸盐中选择,波浪线表示具有抗生素性质的顺式形式、反式形式或顺反式形式。