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Minami-rinkan, Japan

Patent
Nippon Shinyaku Co. | Date: 2015-10-27

The present invention provides a novel heterocyclic derivative or a pharmaceutically acceptable salt thereof. For example, the present invention provides a heterocyclic derivative of the general formula [1] or its tautomer, or a pharmaceutically acceptable salt thereof: wherein R


Patent
Nippon Shinyaku Co. | Date: 2015-02-06

The present invention provides a pharmaceutical composition which causes skipping of the 53rd exon in the human dystrophin gene with a high efficiency. The present invention provides an oligomer which efficiently enables to cause skipping of the 53rd exon in the human dystrophin gene.


A main object of the present invention is to provide a novel crystal of 2-{4-[N-(5,6-diphenylpyrazin-2-yl)-N-isopropylamino]butyloxy}-N-(methylsulfonyl)acetamide (hereinafter referred to as compound A). A Form-I crystal of compound A shows diffraction peaks at 9.4 degrees, 9.8 degrees, 17.2 degrees and 19.4 degrees in the powder X-ray diffraction spectrum thereof. A Form-II crystal of compound A shows diffraction peaks at 9.0 degrees, 12.9 degrees, 20.7 degrees and 22.6 degrees in the powder X-ray diffraction spectrum thereof. A Form-III crystal of compound A shows diffraction peaks at 9.3 degrees, 9.7 degrees, 16.8 degrees, 20.6 degrees and 23.5 degrees in the powder X-ray diffraction spectrum thereof.


Patent
Nippon Shinyaku Co. | Date: 2013-01-17

The present invention relates to a compound represented by general formula [1] satisfying the following (I) or (II), or a pharmaceutically acceptable salt of the compound. (I) X is CH or N; R


Patent
Nippon Shinyaku Co. | Date: 2013-04-02

The present invention relates to novel quinazoline derivatives with less skin irritation and an excellent action of strongly suppressing scratching behavior, and pharmaceutical compositions containing a quinazoline derivative as an active ingredient. The present invention is directed to the quinazoline derivatives represented by the general formula [1] or pharmaceutically acceptable salts thereof. In the general formula [1], R

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