Synthesis of Highly Enantioenriched Propelladienes and their Application as Ligands in Asymmetric Rh-Catalyzed 1,4-Additions
作者:Tommaso Pecchioli、Mathias Christmann
DOI:10.1021/acs.orglett.8b02204
日期:2018.9.7
The first synthesis of highly enantioenriched [4.3.3]propelladienes is reported. The novel bridged bicyclo[3.3.0] dienes were applied as steering ligands in the rhodium-catalyzedasymmetric arylation of cyclic enones. The catalytic system showed high catalytic activity, and the 1,4-adducts were obtained in good to excellent yields (46–99%) with enantioselectivities up to 96% ee.
Provided is a therapeutic agent for hyperparathyroidism, renal osteodystrophy, hypercalcemia and the like, which has a CaSR activating (agonist) action. A compound represented by the following general formula (1):
[wherein, Ar which is a partial structure in the general formula (1) represents a phenyl group or a naphthyl group; R
1a
and R
1b
are the same or different from each other, and represent a hydrogen atom, a halogeno group, or the like; R
2a
and R
2b
are the same or different from each other, and represent a hydrogen atom, a halogeno group, or the like; A represents a single bond, an oxygen atom, or the like; B represents a single bond, a C1-C4 alkanediyl group, or the like; Z represents a carboxyl group or a tetrazolyl group; and m represents an integer of 1 to 3] or a pharmacologically acceptable salt thereof.
Provided is a therapeutic agent for hyperparathyroidism, renal osteodystrophy, hypercalcemia and the like, which has a CaSR activating (agonist) action. A compound represented by the following general formula (1):
[wherein, Ar which is a partial structure in the general formula (1) represents a phenyl group or a naphthyl group; R1a and R1b are the same or different from each other, and represent a hydrogen atom, a halogeno group, or the like; R2a and R2b are the same or different from each other, and represent a hydrogen atom, a halogeno group, or the like; A represents a single bond, an oxygen atom, or the like; B represents a single bond, a C1-C4 alkanediyl group, or the like; Z represents a carboxyl group or a tetrazolyl group; and m represents an integer of 1 to 3] or a pharmacologically acceptable salt thereof.