119139-23-0, Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent£¬Which mentioned a new discovery about 119139-23-0
NOVEL PHTHALAZINONE-PYRROLOPYRIMIDINECARBOXAMIDE DERIVATIVES
The compounds of formula (1) in which R1, R7, R8, R9, R10, R17, R18, R19, R20 and m have the meanings as given in the description, are novel effective inhibitors of type 4 and type 5 phosphodiesterase.
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Reference£º
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis