The present invention relates generally to bis-amide group containing pharmaceutical agents, and in particular, to multicyclic bis-amide MMP-13 inhibitor compounds. More particularly, the present invention provides a new class of MMP-13 inhibiting compounds, containing a pyrimidinyl bis-amide group in combination with a heterocyclic moiety, that exhibit an increased potency and solubility in relation to currently known bis-amide group containing MMP-13 inhibitors.
PROCESS FOR PRODUCING TETRAZOLE COMPOUND AND INTERMEDIATE THEREFOR
申请人:SUMITOMO CHEMICAL COMPANY LIMITED
公开号:EP0711762A1
公开(公告)日:1996-05-15
There are disclosed an industrially favorable process for producing a tetrazole compound of general formula (1):
characterized in that a nitrile of general formula (2):
R¹CN (2)
is reacted with hydrazine or a salt thereof in the presence of a catalyst, followed by reaction with a nitrous acid compound of general formula (3):
ANO₂ (3)
or a nitrile of general formula (2) is reacted with hydrogen sulfide, followed by reaction with an alkyl halide of general formula (4):
R⁴J (4)
with hydrazine or a salt thereof, and then with a nitrous acid compound of general formula (3); and an intermediate of general formula (5):
R¹C(=R⁵)R⁶ (5)
which is useful for the production of the tetrazole compound (in which R¹ to R⁶, A and J in the above formulas are as defined in the specification).
Cross-Coupling Reactions of Potassium Alkyltrifluoroborates with Aryl and 1-Alkenyl Trifluoromethanesulfonates
作者:Gary A. Molander、Takatoshi Ito
DOI:10.1021/ol006896u
日期:2001.2.1
[GRAPHICS]The palladium-catalyzed coupling reaction of potassium alkyltrifluoroborates with aryl- or alkenyltriflates proceeds to afford the corresponding arenes or alkenes in high yield. The berates are all solids, stable in air, and thus can be stored on the shelf indefinitely. The cross coupling can be effected using PdCl2(dppf). CH2Cl2 as the catalyst in THF-H2O in the presence of CS2CO3 A variety of functional groups can be tolerated within the berate and/or the triflate coupling partner.