摘要:
Cephalosporin compounds represented by the general formula in which R¹ is a hydrogen atom or a protective group for the amino group, R² is a hydrogen atom or a protective group for the hydroxyl group, R³ is a hydrogen atom, a self-forming cation or a protective group for the carboxyl group, and R⁴ is a hydrogen atom, a halogen atom or a lower alkyl group, and their pharmacologically acceptable salts, process for their production and use of the same compounds as medicaments, particularly as antibiotic agents.
摘要:
Cephalosporin compounds represented by the general formula in which R¹ is a hydrogen atom or a protective group for the amino group, R² is a hydrogen atom or a protective group for the hydroxyl group, R³ is a hydrogen atom, a self-forming cation or a protective group for the carboxyl group, and R⁴ is a hydrogen atom, a halogen atom or a lower alkyl group, and their pharmacologically acceptable salts, process for their production and use of the same compounds as medicaments, particularly as antibiotic agents.
摘要:
There are disclosed a compound having the following formula: in which R' denotes an aromatic group; Z represents a group (wherein R' denotes hydrogen, a salt forming cation or a protective group for carboxylic acid, and R' denotes hydrogen or a residue of a nucleophilic compound); and X' and X 2 each represent hydrogen or a halogen atom, provided that both X' and X 2 cannot represent hydrogen at the same time; processes for preparing the same; and an intermediate compound useful for preparing the same. The above mentioned compound has a broad antibacterial spectrum and shows strong antibacterial activities against not only gram-positive bacteria but also the gram-negative bacteria, particularly the resistive gram-negative bacteria.
摘要:
There are disclosed a compound having the following formula: in which R' denotes an aromatic group; Z represents a group (wherein R' denotes hydrogen, a salt forming cation or a protective group for carboxylic acid, and R' denotes hydrogen or a residue of a nucleophilic compound); and X' and X 2 each represent hydrogen or a halogen atom, provided that both X' and X 2 cannot represent hydrogen at the same time; processes for preparing the same; and an intermediate compound useful for preparing the same. The above mentioned compound has a broad antibacterial spectrum and shows strong antibacterial activities against not only gram-positive bacteria but also the gram-negative bacteria, particularly the resistive gram-negative bacteria.
摘要:
Aromatically substituted acetic acids are prepared by the reaction of an aromatically substituted aldehyde with a combination of a trihalomethane and an alkanethiol, and by the reaction of an alcohol derivative (2,2,2-trihalo-1-arylethanol) with an alkanethiol, in the presence of a base in a mixed medium of water and an aprotic polar solvent.
摘要:
There are disclosed a compound having the following formula: in which R 1 denotes a substituted or unsubstituted thiazolyl radical, a substituted or unsubstituted thiazolylmercapto radical or a substituted or unsubstituted phenyl radical; R 2 denotes a halogen atom, a cyano radical, a carbamoyl radical, a lower-alkylmercapto radical or an 0-lower-alkylcarboxyimidoyl radical; and Y represents a group (wherein R 3 denotes hydrogen, a salt forming cation or a protective group for a carboxylic acid, and R denotes hydrogen or a residue of a nucleophilic compound); process for preparing the same; and an intermediate compound useful for preparing the same. The above mentioned compound has a broad antibacterial spectrum and shows strong antibacterial activities against not only gram-positive bacteria but also gram-negative bacteria, particularly the resistive gram-negative becteria.
摘要:
There are disclosed a compound having the following formula: in which R 1 denotes a substituted or unsubstituted thiazolyl radical, a substituted or unsubstituted thiazolylmercapto radical or a substituted or unsubstituted phenyl radical; R 2 denotes a halogen atom, a cyano radical, a carbamoyl radical, a lower-alkylmercapto radical or an 0-lower-alkylcarboxyimidoyl radical; and Y represents a group (wherein R 3 denotes hydrogen, a salt forming cation or a protective group for a carboxylic acid, and R denotes hydrogen or a residue of a nucleophilic compound); process for preparing the same; and an intermediate compound useful for preparing the same. The above mentioned compound has a broad antibacterial spectrum and shows strong antibacterial activities against not only gram-positive bacteria but also gram-negative bacteria, particularly the resistive gram-negative becteria.
摘要翻译:公开了具有下式的化合物:其中R 1表示取代或未取代的噻唑基,取代或未取代的噻唑基巯基或取代或未取代的苯基的 R 2表示卤素原子,氰基,氨基甲酰基,低级烷基巯基或O-低级烷基羧基亚氨基; Y表示(其中R 3表示氢,成盐阳离子或羧酸保护基,R 4表示氢或亲核化合物的残基)。 制备方法; 和可用于制备该中间体的中间体化合物。 上述化合物具有广泛的抗菌谱,并且对革兰氏阳性细菌,革兰氏阴性细菌,特别是抗性革兰氏阴性菌也表现出强烈的抗菌活性。