CRYSTALLINE FORM OF 5(S)-(2'-HYDROXYETHOXY)-20(S)-CAMPTOTHECIN

A crystalline form of 5(S)-(2'-hydroxyethoxy)-20(S)-camptothecin diastereoisomer of 5(RS)-(2'-hydroxyethoxy)-20(S)-camptothecin is described that is characterized by having an X-ray powder diffraction pattern comprising one or more peak intensities expressed in degrees 2theta that are sele...

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Hauptverfasser: REKA AJAYA KUMAR, ALIKUNJU SHANAVAS, MULLANGI RAMESH, SIRISILLA RAJU, AKELLA VENKATESWARLU, DUVVURI SUBRAHMANYAM, RAJAGOPAL SRIRAM
Format: Patent
Sprache:eng
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Zusammenfassung:A crystalline form of 5(S)-(2'-hydroxyethoxy)-20(S)-camptothecin diastereoisomer of 5(RS)-(2'-hydroxyethoxy)-20(S)-camptothecin is described that is characterized by having an X-ray powder diffraction pattern comprising one or more peak intensities expressed in degrees 2theta that are selected from the group consisting of 7.2±0.1, 9.4±0.1, 11.02±0.1, 12.00±0.1, 14.54±0.1, 15.2±0.1, 18.92±0.1, 21.86±0.1, 22.74±0.1 and 26.42±0.1. Methods of making and using the compound are also described.