This invention provides compounds of formula IB:
wherein HY, R
1
, R
2
, R
3
, R
15
, G
5
, G
6
, G
7
, G
8
, and G
9
are as described in the specification. The compounds are inhibitors of VPS34 and/or PI3K and are thus useful for treating proliferative, inflammatory, or cardiovascular disorders.
New synthesis of methyl 5-aryl or heteroaryl pyrrole-2-carboxylates by a tandem Sonogashira coupling/5-endo-dig-cyclization from β-iododehydroamino acid methyl esters and terminal alkynes
A new and versatile ‘Pd’/CuI catalyzed protocol was developed for the synthesis in good to high yields of substituted pyrroles from N-Boc-β-iododehydroamino acid methyl esters and several terminal alkynes. This one-pot, two-step procedure occurs by a Sonogashiracoupling followed by a 5-endo-dig-cyclization, which involves the nitrogen atom of the dehydroamino acid. After several experiments using
开发了一种新的,通用的“ Pd” / CuI催化方案,用于从N -Boc-β-碘代氢氨基酸甲酯和数个末端炔烃以高产率高收率合成取代吡咯。发生这种一锅,两步法通过Sonogashira偶联,随后的5内切-挖-cyclization,这涉及到脱氢氨基酸的氮原子。在使用不同的Pd(0)和Pd(II)种类进行几次实验后,可以建立更通用的反应条件,这些条件是:在干燥DMF中使用Pd(II)催化剂,CuI和Cs 2 CO 3作为碱在70°C下。用带有给电子基团的芳基乙炔和富电子的杂芳基乙炔可获得最佳产率。