Novel crystalline forms of [R-(R*,R*)]-2-(4-fluorophenyl)-.beta.,.delta.-dihydroxy-5-(1-methylethyl)- 3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic acid hemi calcium salt designated Form V, Form VI, Form VII, Form VIII, Form IX, Form X, Form XI, Form XII, Form XIII, Form XIV, Form XV, Form XVI, Form XVII, Form XVIII, and Form XIX are characterized by their X-ray powder diffraction, solid-state NMR, and/or Raman spectroscopy are described, as well as methods for the preparation and pharmaceutical composition of the same, which are useful as agents for treating hyperlipidemia, hypercholesterolemia, osteoporosis, and Alzheimer's disease.

De nieuwe kristallijne vormen van [ r-(R*, r*)]-2-(4-fluorophenyl)-.beta., delta.-dihydroxy-5-(1-methylethyl) worden - 3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic zure aangewezen Vorm V van het hemicalcium zout, Vorm VI, Vorm VII, Vorm VIII, Vorm IX, Vorm X, Vorm XI, Vorm XII, Vorm XIII, Vorm XIV, Vorm XV, Vorm XVI, Vorm XVII, Vorm XVIII, en Vorm XIX gekenmerkt door hun X-ray poederdiffractie, NMR in vaste toestand, en/of wordt de spectroscopie Raman beschreven, evenals methodes voor de voorbereiding en de farmaceutische samenstelling van het zelfde, die als agenten voor het behandelen van hyperlipidemia, hypercholesterolemia, osteoporose, en de ziekte van Alzheimer nuttig zijn.

 
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