【評論主題】50.下列可用於治療多發性硬化症（multiple sclerosis）的藥物中，何者為前驅藥？(A)glatiramer(B)ocrelizumab(C)dalfampridine(D)fingol

【評論內容】

In addition to teriflunomide (previously discussed), two other immunomodulators are available to treat relapsing MS, fingolimod, and dimethyl fumarate.

Fingolimod is an analog of sphingosine and requires phosphorylation for activity.

Essentials of Foye's Principles of Medicinal Chemistry by David A. Williams PhD