The present invention relates to 5-aminomethylpyrazolo[4,3-d]pyrimidines of the general formula (I) ##STR00001## in which the radicals R.sup.1 to R.sup.6 have the meaning indicated in the text. The compounds show phosphodiesterase V inhibition and can be employed for the treatment of conditions of the cardiovascular system and for the treatment of potency disorders.
![5-aminoalkyl-pyrazolo[4,3-d]pyrimidines with a phosphodiesterase v-inhibiting effect - US Patent 7060823 - Page 1](http://www.wikipatents.com/5-aminoalkyl-pyrazolo43-dpyrimidines-with-a-phosphodiesterase-v-inhibiting-effect/T/US7060823-1.jpg "5-aminoalkyl-pyrazolo[4,3-d]pyrimidines with a phosphodiesterase v-inhibiting effect - US Patent 7060823 - Page 1")
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