Antifungal compounds and processes for making
Provided are polymorphic forms of compound 5 or 5*, or mixtures thereof, and polymorph forms of compound 14 or 14*, or mixtures thereof. Also provided are methods of preparing compound 5 or 5*, or mixtures thereof, and methods of preparing compound of 14 or 14*, or mixtures thereof, which are useful as antifungal agents. In particular, provided is new methodology for preparing polymorphs of the compounds described and substituted derivatives thereof.
1. A polymorph of a compound of formula 5,
characterized by at least one of:
(i) a powdered X-ray diffraction pattern having two or more peaks expressed in degrees 2-theta±0.2° and selected from peaks delineated in the pattern of FIG. 8 ;
or
(ii) a DSC thermogram showing an endotherm at about 65-85° C.
2. The polymorph of claim 1 , characterized by a powdered X-ray diffraction pattern having peaks expressed in degrees 2-theta±0.2° at each of about 10.9, 14.0, 15.9, 19.7, and 23.2.
3. The polymorph of claim 1 , wherein the polymorph has less than 1.0% water therein.