The ligand-free palladium-catalyzed C3-cyanation of indoles via direct C–H functionalization was achieved. This protocol, utilizing CH3CN as a green and readily available cyanide source, produced the desired products in moderate to good yields through transition-metal-catalyzed C–CN bond cleavage.
Disclosed are compounds of Formula (I)
or salts thereof, wherein: HET is a heteroaryl selected from pyrazolyl, indolyl, pyrrolo[2,3-b]pyridinyl, pyrrolo[2,3-d]pyrimidinyl, pyrazolo[3,4-b]pyridinyl, pyrazolo[3,4-d]pyrimidinyl, 2,3-dihydro-1H-pyrrolo[2,3-b]pyridinyl, imidazo[4,5-b]pyridinyl, and purinyl, wherein said heteroaryl is substituted with R
a
and R
b
; and R
1
and R
2
are define herein. Also disclosed are methods of using such compounds as modulators of IRAK4, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing inflammatory and autoimmune diseases.
公开的是Formula (I)的化合物或其盐,其中:HET是从吡唑基、吲哚基、吡咯并[2,3-b]吡啶基、吡咯并[2,3-d]嘧啶基、吡唑并[3,4-b]吡啶基、吡唑并[3,4-d]嘧啶基、2,3-二氢-1H-吡咯并[2,3-b]吡啶基、咪唑并[4,5-b]吡啶基和嘌呤基中选择的杂环芳基,其中所述杂环芳基被R
a
和R
b
取代;以及R
1
和R
2
在此处定义。还公开了使用这些化合物作为IRAK4调节剂的方法,以及包含这些化合物的药物组合物。这些化合物在治疗、预防或减缓炎症性和自身免疫性疾病方面是有用的。
Copper-Catalyzed [4 + 1] Annulation of Enaminothiones with Indoline-Based Diazo Compounds
A concise synthetic route to spiroindoline-fused S-heterocycles was developed through copper-catalyzed [4 + 1] annulation using enaminothiones as donor–acceptor synthons. Both 3-diazoindolin-2-imines and 3-diazooxindoles were amenable to work as effective C1 building blocks. The reaction proceeds via a copper-catalyzed cascade process involving the in situ generation of copper(I) carbene and C–S/C–C
This invention relates to compounds useful for treating fungal infections, more specifically topical treatment of onychomycosis and/or cutaneous fungal infections. This invention is directed to compounds that are active against fungi and have properties that allow the compound, when placed in contact with a patient, to reach the particular part of the skin, nail, hair, claw or hoof infected by the fungus. In particular the present compounds have physiochemical properties that facilitate penetration of the nail plate.