Abstract: The present invention provides processes for preparing 7H-pyrrolo[2,3-d]pyrimidine derivatives, which are useful as a Janus kinase (JAK) inhibitor, intermediates thereof, and processes for preparing the intermediates. The present invention provides processes for preparing 3-[(3S,4R)-3-methyl-6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,6-diazaspiro[3.4]octan-1-yl]-3-oxopropanenitrile using salts of (3S,4R)-1-benzyl-3-methyl-1,6-diazaspiro[3.4]octane with organic acids.

Abstract: A support base for a display monitor provides for the rotation and stable orientation of the monitor over a range of tilt angles. An upper portion of the base is adapted to receive a turntable having an upper concave surface adapted to receive a complementary convex lower portion of the display monitor's cabinet. The concave surface of the turntable includes a first pair of spaced guide rails adapted to receive and engage respective complementary guide rail assemblies positioned on the convex lower portion of the monitor. The convex lower portion of the cabinet is further provided with a pair of spaced projections for insertion within respective elongated apertures in the turntable which are parallel to and in spaced relation with its guide rails.