129623-80-9Relevant academic research and scientific papers
PYRAZOLO[3,4-B]PYRIDINE COMPOUNDS, AND THEIR USE AS PDE4 INHIBITORS
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Page/Page column 199, (2010/11/30)
The invention provides a compound of formula (I) or a salt thereof: wherein Ar has the sub-formula (x): and wherein: Q1 is NH or NMe, in which case Q2 is -C(O)-, -S(O)2-, -C(O)NH- or -C(O)NMe-; or Q1 is a bond o
A Novel Synthetic Approach to Pyrrolopyrimidine Antifolates
Miwa, Tetsuo,Hitaka, Takenori,Akimoto, Hiroshi
, p. 1696 - 1701 (2007/10/02)
A novel and efficient synthetic method for the synthesis of pyrrolopyrimidine antifolates is described.The key reaction of this method is the photo-initiated free radical addition of bromomalononitrile or ethyl bromocyanoacetate to an enol ether to afford the backbone skeleton of the targeted antifolate molecule.The key intermediates 3 or 4 are smoothly converted to the pyrrolopyrimidine antifolates 1 or 2 in three steps and in high overall yield.
