The present invention relates to optionally substituted (5- or 7-oxy)-3,4-dihydro-(optionally 4-oxo, 4-thioxo or 4-imino)-1H-pyrrolo[3,4-d]pyrimidin-2(3H,6H)-ones, e.g., Compounds of Formula II-A′ or II-B′ as described herein, processes for their production, their use as pharmaceuticals and pharmaceutical compositions comprising them.
                            本发明涉及选择性取代(5-或7-氧)-3,4-二氢-(可选4-氧,4-
硫代或4-
亚胺)-1H-
吡咯[3,4-d]
嘧啶-2(3H,6H)-酮,例如,如本文所述的II-A'或II-B'式化合物,其制备方法,它们作为药物的用途和包括它们的药物组合物。