The present invention relates to a novel production method of a diaminopyrimidine compound useful as an intermediate for various compounds having a pharmacological activity, a novel intermediate useful for producing said compound, and a production method of the intermediate.
The present invention provides a novel 5-aminopyrimidine compound represented by the following formula (2) and a novel 4,5-diaminopyrimidine compound represented by the formula (3), as well as production methods of the compounds of the following formulas (2) to (6).
wherein each symbol is as defined in the specification.
The present invention relates to a novel production method of a diaminopyrimidine compound useful as an intermediate for various compounds having a pharmacological activity, a novel intermediate useful for producing said compound, and a production method of the intermediate.
The present invention provides a novel 5-aminopyrimidine compound represented by the following formula (2) and a novel 4,5-diaminopyrimidine compound represented by the formula (3), as well as production methods of the compounds of the following formulas (2) to (6).
wherein each symbol is as defined in the specification.
A Novel Practical Synthesis of<i>C</i>-2-Arylpurines
作者:Takahiro Itoh、Kimihiko Sato、Toshiaki Mase
DOI:10.1002/adsc.200404159
日期:2004.12
obtained with 1,1′-bis(di-tert-butylphosphino)ferrocene (=D-t-BPF) under anhydrous conditions. Tolerance of various arylboronic acids was also found. Subsequent reduction with H2/Pd-C of one of the coupling adducts, 4-amino-5-nitro-2-phenylpyrimidine, gave the diamine, which was further condensed with activated acid derivatives to afford a wide variety of the 2-phenylpurine derivatives in excellent