Nippon Soda Co., Ltd.

Satoshi Kajita

Tomomi Kobayashi

Kaoru Noda

Fuminori Komatsu

Keiichiro Matsuda

Yuki Hashimoto

Masayuki Matsushita

Katsumi Okada

A compound represented by formula (I), wherein Arepresents a halogen ion, a benzenesulfonate ion, an alkylsulfonate ion or the like, X represents a halogeno group or the like, a is an integer of 0 to 4, Y represents a C1-C8 alkyl group or the like, b is an integer of 0 to 5. 

Pyridine-2-yl pyridinium compound and method of using same

The present invention provides a compound characterized by being represented by general formula (I): (wherein, A represents a halogen atom, alkyl group, haloalkyl group, alkoxy group, haloalkoxy group, alkylsulfonyl group, unsubstituted or substituted aryl group, cyano group or nitro group, n represents an integer of 0 to 5 (and A may be mutually the same or different when n is 2 or more), Y represents an alkyl group, M represents an alkaline metal or alkaline earth metal, and m represents an integer of 1 or 2).

Compound, method for producing compound, and method for purifying compound

The present invention relates to a carbapenem compound represented by formula (Ia) shown below: The carbapenem compound preferably has a crystalline form, and more preferably, the crystalline form has a powder X-ray diffraction pattern with peaks at 15.64, 9.93, 6.83, 6.52, 5.44, 5.01, 4.72, 4.50, 4.33, 4.24, 3.98, 3.85, 3.57, 3.41, 3.31, 3.10 2.76, and 2.67 as d-spacings (&#x212b;).

Carbapenem compound

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Joetsu, Japan

Satoshi Kajita