55457-87-9Relevant academic research and scientific papers
Amino derivatives of pyrazolo [1,5-a]s-triazine, and their therapeutic applications
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, (2008/06/13)
This invention relates to compounds having the general formula: STR1 in which: R1 represents a hydrogen atom or a (C1-4) alkyl radical, R2 represents a hydrogen atom, a (C1-4) alkyl radical, a (C2-4) alkenyl radical, a (C1-4) alkoxy-(C1-4) alkyl radical or a tetrahydrofuryl- or tetrahydropyranyl-(C1-4) alkyl radical, R3 represents a hydrogen atom or a (C1-4) alkyl radical, and R4 represents a hydrogen atom or a (C1-4) alkyl radical, and their pharmaceutically acceptable acid addition salts. Said compounds have valuable bronchodilator properties.
