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Updated: Jan 27, 2026

Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases
Published on: November 21, 2010
Crystal structure of idelalisib tert-butanol monosolvate dihydrate
Sven Nerdinger1, Marijan Stefinovic1, Frank Richter1
1Sandoz GmbH, Biochemiestrasse 10, 6250 Kundl, Austria.
Abstract:
In the title structure, 5-fluoro-3-phenyl-2-[(1S)-1-(9H-purin-6-yl-amino)-prop-yl]quinazolin-4(3H)-one (= idelalisib) tert-butanol monosolvate dihydrate, C22H18FN7O·C4H10O·2H2O, the idelalisib mol-ecule displays planar quinazoline and purine systems which are nearly perpendicular to one another. Seven distinct hydrogen-bonding inter-actions link the idelalisib, t-BuOH and water mol-ecules into a complex chain structure with the topology of a 2,3,4,5-connected 4-nodal net having the point symbol (3.4.52.62)(3.4.52.64.72)(3.5.6)(5).
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