180205-43-0Relevant articles and documents
SUBSTITUTED SPIROPYRIDO[1,2-a]PYRAZINE DERIVATIVE AND PHARMACEUTICAL USE OF SAME AS HIV INTEGRASE INHIBITOR
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Paragraph 1360-1366; 1468-1474, (2014/08/19)
Provided is a substituted spiropyrido[1,2-a]pyrazine derivative or a pharmaceutically acceptable salt thereof, which is useful as an anti-HIV agent. The present invention relates to a compound represented by the following formula [I] or [II] or a pharmace
Diastereoselective synthesis of hydantoin- and isoxazoline-substituted dispirocyclobutanoids
Park, Kyung-Ho,Kurth, Mark J.
, p. 3520 - 3524 (2007/10/03)
Synthetic strategies for constructing novel achiral cyclobutanoid isoxazolidinoimidazolidinedione heterocycles, with a generalized structure of II, have been developed via 1,3-dipolar cycloaddition and carbanilide cyclization transformations from methylenecyclobutane 13. The exo methylene cyclobutane system has made the realization of some diasteroselectivity possible, such that the H-bond (Boc-NH) directed product (i.e., 14) was obtained with 3:1 selectivity relative to the non-H-bond directed product (i.e., 15).