The [3 + 2] dipolar cycloaddition of 4-halosydnones with 1-haloalkynes opens a straightforward access to 3,5-dihalopyrazoles, valuable scaffolds for the elaboration of unsymmetrically 3,5-substituted pyrazole derivatives via site-selective Pd-catalyzed cross-coupling reactions. For instance, the flexible introduction of different (hetero)aryl substituents at the C-5 and C-3 positions of the PMP-protected
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.