154148-69-3Relevant articles and documents
IRAK4 INHIBITORS AND USES THEREOF
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, (2019/05/22)
Compounds of Formula I as IRAK4 inhibitors are disclosed. The pharmaceutical compositions comprising compounds of formula I, methods of synthesis of these compounds, methods of treatment for diseases associated with IRAK-4 such as inflammatory diseases an
BICYCLIC PYRAZOLE DERIVATIVE
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Page/Page column 158, (2010/11/30)
A compound represented by the following formula (I), a prodrug thereof, or a pharmaceutically acceptable salt of either. These are compounds having high DPP-IV inhibitory activity and improved in safety, nontoxicity, etc. (I) [In the formula, R1 represents hydrogen, optionally substituted alkyl, etc.; the solid line and dotted line between A1 and A2 indicate a double bond (A1=A2), etc.; A1 represents a group represented by the formula C(R2), etc.; A2 represents a group represented by the formula C(R4), etc.; R2 represents hydrogen, optionally substituted alkyl, etc.; R4 represents hydrogen, optionally substituted alkyl, etc.; R6 represents hydrogen, optionally substituted aryl, etc.; and -Y represents, e.g.; a group represented by the formula (A): (A) (wherein ml is 0, 1, 2, or 3; and R7 is absent, or one or two R7's are present and each independently represents optionally substituted alkyl, etc.).]
Synthesis and Reactions of Iodo Lactams
Knapp, Spencer,Levorse, Anthony T.
, p. 4006 - 4014 (2007/10/02)
The synthesis of a series of iodo lactams has been achieved by a new cyclization method that depends on generating N,O-bis(trimethylsilyl)imidate derivatives as intermediates.Treatment of an unsaturated amide with trimethylsilyl triflate in pentane and then iodine in tetrahydrofuran gives the iodo lactam.Some reactions of this new difunctional group with bases, nucleophiles, and Michael acceptors leading to functionalized or elaborated lactams are presented.In general, iodo lactams undergo direct SN2 reactions with reactive (but weakly basic) nucleophiles like azide and triphenylphosphine and elimination or decomposition in the presence of bases or basic nucleophiles.Sodium hydride may be used to generate an N-acylaziridine intermediate, which can be opened with azide to deliver an azido lactam with overall retention of stereochemistry.Silver-assisted solvolysis of iodo lactams gives the hydroxy lactams with retention of configuration, probably also because of participation by the lactam nitrogen.The sodium salt of 5-(iodomethyl)-2-pyrrolidinone (3), generated at -20 deg C, undergoes an annulation reaction with unsaturated esters (but not sulfones), leading to pyrrolizidine derivatives.
