Pyrrolotriazinone derivatives

A compound selected from the following group:

• No.
• Name
• “A1”
• 2-p-tolyl-3H-pyrrolo[2,1-f][1,2,4]triazin-4-one
• “A2”
• 4-(4-oxo-3,4-dihydro-pyrrolo[2,1-f][1,2,4]triazin-2-yl)-benzoic
• acid methyl ester
• “A3”
• 2-(4-tert-butyl-phenyl)-3H-pyrrolo[2,1-f][1,2,4]triazin-4-one
• “A4”
• 2-(1-acetyl-piperidin-4-yl)-3H-pyrrolo[2,1-f][1,2,4]triazin-4-one
• “A5”
• 2-[4-(1-hydroxy-1-methyl-ethyl)-phenyl]-3H-pyrrolo-
• [2,1-f][1,2,4]triazin-4-one
• “A6”
• 2-(4-bromo-phenyl)-3H-pyrrolo[2,1-f][1,2,4]triazin-4-one
• “A7”
• 2-[4-(1-methyl-1H-pyrazol-4-yl)-phenyl]-3H-pyrrolo-
• [2,1-f][1,2,4]triazin-4-one
• “A8”
• 2-(4-pyrrolidin-l-ylphenyl)-3H-pyrrolo[2,1-f][1,2,4]triazin-4-one
• “A9”
• 2-cyclohexyl-3H-pyrrolo[2,1-f][1,2,4]triazin-4-one
• “A10”
• 2-(1-tert-butylpyrazol-4-yl)-3H-pyrrolo[2,1-f][1,2,4]triazin-4-one
• “A11”
• 2-[4-(1-hydroxy-1-methyl-ethyl)phenyl]-6-methyl-3H-pyrrolo
• [2,1-f][1,2,4]triazin-4-one
• “A12”
• 6-fluoro-2-[4-(1-hydroxy-1-methyl-ethyl)phenyl]-3H-pyrrolo
• [2,1-f][1,2,4]triazin-4-one
• “A13”
• 6-methyl-2-[4-(1-methylpyrazol-4-yl)phenyl]-3H-pyrrolo-
• [2,1-f][1,2,4]triazin-4-one
• “A14”
• 2-[4-(1-ethyl-1-hydroxy-propyl)-phenyl]-3H-pyrrolo[2,1-
• f][1,2,4]triazin-4-one
• “A15”
• 2-{4-[1-(2-hydroxy-ethoxy)-1-methyl-ethyl]-phenyl}-3H-
• pyrrolo[2,1-f][1,2,4]triazin-4-one
• “A16”
• 2-[4-(1-amino-1-methyl-ethyl)-phenyl]-3H-pyrrolo[2,1-f][1,2,4]-
• triazin-4-one
• “A17”
• 6-[4-(1-hydroxy-1-methyl-ethyl)-phenyl]-2-methyl-5H-1,5,7,7a-
• tetraaza-inden-4-one
• “A18”
• 6-chloro-2-[4-(1-hydroxy-1-methyl-ethyl)-phenyl]-3H-pyrrolo
• [2,1-f][1,2,4]triazin-4-one
• “A19”
• 2-[4-(1-hydroxy-1-methyl-ethyl)-phenyl]-7-methyl-3H-
• pyrrolo[2,1-f][1,2,4]triazin-4-one
• “A20”
• 2-[4-(1-hydroxy-1-methyl-ethyl)-phenyl]-7-trifluoromethyl-3H-
• pyrrolo[2,1-f][1,2,4]triazin-4-one
• “A21”
• 2-[4-(1-hydroxy-cyclopentyl)-phenyl]-3H-pyrrolo[2,1-f][1,2,4]-
• triazin-4-one
• and pharmaceutically acceptable solvates, salts, tautomers and stereoisomers thereof, including mixtures thereof in all ratios.