Development of 8-benzyloxy-substituted quinoline ethers and evaluation of their antimicrobial activities
摘要:
A series of 8-benzyloxy-substituted quinoline ethers (2a-n) compounds were synthesized. All synthesized compounds were screened in vitro for their preliminary antimicrobial activities against two Gram-negative bacteria (Pseudomonas aeruginosa and Escherichia coli), two Gram-positive bacteria (Staphylococcus aureus and Staphylococcus epidermidis), and a fungal species (Aspergillus niger). Among all synthesized compounds, compound 2e showed a significant growth inhibitory activity with MIC value 3.125 mu g/mL which was comparable to 8-hydroxyquinoline (2.5 mu g/mL) and terbinafine (1.25 mu g/mL) against A. niger.
Compounds of a certain formula (I), in which R1, R2, R3, R31, R4, R5, R51, R6, R7 and R8 have the meanings indicated in the description, are novel effective PDE4 inhibitors.
The invention relates to compounds useful as fungicides and plant growth regulants represented by the formula
in which:
R is a substituent or a group of substituents representing halogen, low alkyl of 1 to 6 carbon atoms, phenyl, substituted phenyl, phenoxy, substituted phenoxy, naphthyl, nitro, cyano, low alkoxy, alkoxycarbonyl, or trifluoromethyl;
X is single bond, oxygen, sulfur or sulfonyl;
G is CH or nitrogen atom;
m is an integer from 1 to 4 and a process of making the compound.
本发明涉及可用作杀真菌剂和植物生长调节剂的化合物,其式如下
其中
R 是取代基或取代基组,代表卤素、1-6 个碳原子的低级烷基、苯基、取代苯基、苯氧基、取代苯氧基、萘基、硝基、氰基、低级烷氧基、烷氧羰基或三氟甲基;
X 是单键、氧、硫或磺酰基;
G 是 CH 或氮原子
m 是 1 至 4 的整数,以及制造该化合物的工艺。
Method of preparing a composition containing hygromycin A and epi-hygromycin
申请人:Pfizer Products Inc.
公开号:EP1369490A1
公开(公告)日:2003-12-10
A method of preparing a composition containing hygromycin A and epi-hygromycin, wherein the ratio of hygromycin A to epi-hygromycin is at least 10:1, which comprises fermenting Streptomyces hygroscopicus in media having a pH less than 6.9 at a temeperature ranging from 25°C to 35°C.
一种制备含百日咳霉素 A 和表-百日咳霉素的组合物的方法,其中百日咳霉素 A 与表-百日咳霉素的比例至少为 10:1,该方法包括在 pH 值小于 6.9 的培养基中,在 25°C 至 35°C 的温度范围内发酵吸湿链霉菌。
Dérivés d'indénoindolones, leur procédé de préparation et les compositions pharmaceutiques qui les contiennent