The invention relates to dihydro-benzo-oxazine and dihydro-pyrido-oxazine compounds of the formula (I) and/or pharmaceutically acceptable salts and/or solvates thereof, wherein Y, V, W, U, Q, R1, R5, R7 and R30 are as defined in the description. Such compounds are suitable for the treatment of a disorder or disease which is mediated by the activity of the PI3K enzymes.本發明係關於式(I)之二氫-苯并-及二氫-吡啶并-化合物及/或其醫藥學上可接受之鹽及/或溶劑合物,其中Y、V、W、U、Q、R1、R5、R7及R30如說明書中所定義。此等化合物適用於治療由PI3K酶之活性介導的病症或疾病。