| abstract |
Provided herein are compounds of Formula I and/or salts thereof; wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22 and R23 are independently chosen from H and D. At least one of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R22 and R23 is enriched with deuterium, and R19, R20, and R21 are independently chosen from H and D; or two of R19, R20, and R21 are enriched with deuterium. Also provided are medicaments comprising these compounds and methods for treating central nervous system disorders with the compounds and medicaments described herein. |