Process for Synthesis of VBP15 as a Treatment for Duchenne Muscular Dystrophy
This technology includes processes for the synthesis of VBP15 (17a,21-dihydroxy-16a-methyl-pregna-1,4,9(11)-triene-3,20-dione) of high purity and large quantities as a treatment for Duchenne muscular dystrophy. The synthesis of VBP15 has several deficiencies which has hindered larger-scale preparation for clinical evaluation and potential manufacturing. The deficiencies included formation of significant levels of undesired epoxide impurity, formation of undesired ketone impurity, and resultant need for costly chromatographic purification.