Bis-tetrazolemethyl substituted beta-lactam antibiotics, their preparation and pharmaceutical formulations containing them
申请人:ELI LILLY AND COMPANY
公开号:EP0048165A1
公开(公告)日:1982-03-24
Broad spectrum β-lactam antibiotics are described. They are represented by the formula
wherein R is hydrogen or an acyl group of the formula
wherein R° is an aryl or aralkyl group of the formula
wherein R' is phenyl or phenyl substituted by halogen, hydroxy amino, acetamido, C,-C4 alkyl, C1-C4 alkoxy, cyano, carboxy, carboxamido, carboxymethyl, C,-C4 alkoxycarbony-Imethyl, hydroxymethyl, or aminomethyl; or R' is a di- or tri-substituted phenyl group of the formula
wherein each of a, a', and a" are independently hydrogen, halogen, hydroxy, C1-C4 alkyl or C1-C4 alkoxy; and
or R° is an aryloxymethyl or arylthiomethyl group of the formula
wherein R' has the same meanings as defined above. and z is O or S; or R° is a heterocyclic methyl group of the formula
wherein R2 is thienyl, furyl, 1H-tetrazol-1-yl, 1H-tetrazol-5-yl,
wherein each b is hydrogen, amino, protected-amino, C1-C3 alkyl or phenyl; or R° is a group of the formula
wherein R3 is R' as defined above and in addition 1,4-cyclohexadienyl, thienyl or furyl, and Q is hydroxy, carboxy, sulfo, or amino; or R° is an oximino substituted group represented by the formula
wherein R4 is R' as defined above and in addition thienyl, furyl, or
wherein b has the same meanings as defined above and R5 is hydrogen, or C1-C4 alkyl; or R° is a group of the formula
wherein R3 is as defined above and R6 is phenyl substituted by 1-3 hydroxy groups or pyridyl substituted with from 1-3 hydroxy groups; or R6 is a group of the formula
wherein R' is C1-C4 alkylamino, phenyl, chlorophenyl, furyl, styrryl, chlorostyrryl, or nitrostyrryl; or R6 is a group of the formula
wherein n' is 1 or 2 and m is 2 or 3 with the limitation that when n' is 2, m is 2; and R8 is hydrogen, C1-C3 alkyl, C2-C4 alkanoyl, or C1-C3 alkylsulfonyl; R, is hydrogen or a carboxy protecting group; R2 is hydrogen or methoxy; R3 is a bis-tetrazolemethyl group of the formula
wherein R4 is hydrogen or C1-C3 alkyl; and when R, is hydrogen, the pharmaceutically acceptable salts thereof.
The compounds are obtained by reacting a 7-acylamino-3-halomethyl-1-oxa-β-lactam ester with the desired 1- or 2-tetrazolemethyl substituted 1H or 2H tetrazole-5-thiol, or alternatively by reacting a 7-amino-3-halomethyl-1-oxa-b-lactam ester with the bis-tetrazole thiol and then N-acylating with the desired carboxylic acid.
描述了广谱β-内酰胺类抗生素。它们由式
其中 R 是氢或式中的酰基
其中 R°为式中的芳基或芳烷基
其中 R' 是苯基或被卤素、羟基氨基、乙酰氨基、C,-C4 烷基、C1-C4 烷氧基、氰基、羧基、羧氨基、羧甲基、C,-C4 烷氧基羰基甲基、羟甲基或氨基甲基取代的苯基;或 R' 是式中的二取代或三取代苯基。
其中 a、a'和 a "各自独立地为氢、卤素、羟基、C1-C4 烷基或 C1-C4 烷氧基;以及
或 R° 是式中的芳氧基甲基或芳硫甲基基团
其中 R'的含义与上式定义相同,z 为 O 或 S;或 R°为式中的杂环甲基
其中 R2 是噻吩基、呋喃基、1H-四唑-1-基、1H-四唑-5-基、
其中每个 b 是氢、氨基、受保护氨基、C1-C3 烷基或苯基;或 R° 是式中的基团
其中 R3 是如上定义的 R',此外是 1,4-环己二烯基、噻吩基或呋喃基,而 Q 是羟基、羧基、磺基或氨基;或 R°是由式所代表的草酰亚胺取代的基团
其中 R4 是如上定义的 R',此外是噻吩基、呋喃基,或
其中 b 的含义与上式所定义的相同,R5 为氢或 C1-C4 烷基;或 R°为式中的基团
其中 R3 如上定义,R6 是被 1-3 个羟基取代的苯基或被 1-3 个羟基取代的吡啶基;或 R6 是式中的基团
其中 R'是 C1-C4 烷基氨基、苯基、氯苯基、呋喃基、苯乙烯基、氯代苯乙烯基 或硝基苯乙烯基;或 R6 是式中的基团
其中 n' 为 1 或 2,m 为 2 或 3,但当 n' 为 2 时,m 为 2;以及 R8 为氢、C1-C3 烷基、C2-C4 烷酰基或 C1-C3 烷基磺酰基;R,为氢或羧基保护基团;R2 为氢或甲氧基;R3 为式中的双四唑甲基。
其中 R4 为氢或 C1-C3 烷基;当 R 为氢时,为其药学上可接受的盐。
这些化合物是通过 7-酰氨基-3-卤甲基-1-氧杂-β-内酰胺酯与所需的 1-或 2-四唑甲基取代的 1H 或 2H 四唑-5-硫醇反应,或通过 7-氨基-3-卤甲基-1-氧杂-b-内酰胺酯与双四唑硫醇反应,然后与所需的羧酸发生 N-酰化反应而得到的。