申请人:Van Den Berg Alexander Marco
公开号:US20070093465A1
公开(公告)日:2007-04-26
The present invention is concerned with a novel cephem compound, with a process for the production of this compound, which process may contain or consist of fermentative steps, chemical steps, and/or biotransformation steps. A cephem compound according to the present invention characterised by formula (I) or a salt or ester thereof, wherein R is selected from the group consisting of (carboxymethylthio)propionyl (carboxyethylthio)propionyl Y—CH2-CO15 wherein Y is phenyl, phenoxy or tetrazolyl HOOC—X—CO wherein X is defined as (CH
2
)
4
or wherein X is defined as (CH
2
)P-A-(CH
2
)q, wherein p and q each individually are 0, 1, 2, 3 or 4, and A is CH═CH, C—═C, CHB, C═O, O, S, NH, the nitrogen optionally being substituted or the sulfur optionally being oxidized, and B is hydrogen, halogen, C
1-3
alkoxy, hydroxyl, or optionally substituted methyl, with the proviso that p+q should be 2 or 3, when A is CH═CH or C═—C, or p+q should be 3 or 4, when A is CHB, C═O, 0, S or NH or wherein X is (CH
2
)
m
—CH=A-(CH2)
n
or (CH
2
)
m
—C═—C—(CH
2
)
n
, wherein m and n each individually are 0, 1, 2 or 3 and m+n=2 or 3, and A is CH or N, or wherein X is (CH2)p-CH═CH—C H═C—(CH2)q wherein p and q each individually are 0 or 1 and p+q=0 or 1 and wherein R′ is selected from the group consisting of OH O-(alkyl 1-6C) wherein the alkyl can be straight or branched and O—C(alkyl 1-6C)—O-(alkyl 1-6C) wherein the alkyl groups can be straight or branched can inter alia be prepared by fermentative techniques according to the invention and in particular using a suitable microorganism possessing or being transformed with the genes needed for conversion of an appropriate acyl-6-aminopenicillanic acid into the desired compound.
本发明涉及一种新型头孢菌素化合物,以及生产该化合物的方法,该方法可以包含或由发酵步骤、化学步骤和/或生物转化步骤组成。根据本发明的头孢菌素化合物的特征式(I)或其盐或酯,其中R选自以下组中的一种:(羧甲基硫)丙酰基、(羧乙基硫)丙酰基、Y-CH2-CO15,其中Y为苯基、苯氧基或四唑基,HOOC-X-CO,其中X定义为(CH2)4或X定义为(CH2)P-A-(CH2)q,其中p和q各自为0、1、2、3或4,A为CH═CH、C—═C、CHB、C═O、O、S、NH,氮原子可选择性地被取代或硫原子可选择性地被氧化,B为氢、卤素、C1-3烷氧基、羟基或可选择性取代的甲基,条件是当A为CH═CH或C═—C时,p+q应为2或3,当A为CHB、C═O、O、S或NH时,p+q应为3或4,或X为(CH2)m-CH=A-(CH2)n或(CH2)m-C═—C—(CH2)n,其中m和n各自为0、1、2或3,m+n=2或3,A为CH或N,或X为(CH2)p-CH═CH—C H═C—(CH2)q,其中p和q各自为0或1,p+q=0或1,R′选自以下组中的一种:OH、O-(烷基1-6C),其中烷基可以是直链或支链,或O-C(烷基1-6C)-O-(烷基1-6C),其中烷基可以是直链或支链,可以通过本发明的发酵技术制备,特别是使用具有或被转化为转化适当酰基-6-氨基青霉酸酸的基因所需的适当微生物将其转化为所需的化合物。