DEUTERIUM-ENRICHED EPLIVANSERIN
The present application describes deuterium-enriched eplivanserin, pharmaceutically acceptable salt forms thereof, and methods of treating using the same.
1 . A deuterium-enriched compound of formula I or a pharmaceutically acceptable salt thereof:
wherein R 1 -R 2 , are independently selected from H and D; and
the abundance of deuterium in R 1 -R 21 is at least 5%, provided that when R 18 is D, then at least one other R is D.
2 . A deuterium-enriched compound of claim 1 , wherein the abundance of deuterium in R 1 -R 2 , is selected from at least 5%, provided that when R 18 is D, then at least one other R is D. The abundance can also be at least 10%, at least 14%, at least 19%, at least 24%, at least 29%, at least 33%, at least 38%, at least 43%, at least 48%, at least 52%, (k) at least 57%, at least 62%, at least 67%, at least 71%, at least 76%, at least 81%, at least 86%, at least 90%, at least 95%, and 100%.
3 . A deuterium-enriched compound of claim 1 , wherein the abundance of deuterium in R 1 is selected from at least 100%.
4 . A deuterium-enriched compound of claim 1 , wherein the abundance of deuterium in R 2 -R 5 is selected from at least 25%, at least 50%, at least 75%, and 100%.
5 . A deuterium-enriched compound of claim 1 , wherein the abundance of deuterium in R 6 -R 7 is selected from at least 50% and 100%.
6 . A deuterium-enriched compound of claim 1 , wherein the abundance of deuterium in R 8 -R 11 is selected from at least 25%, at least 50%, at least 75%, and 100%.
7 . A deuterium-enriched compound of claim 1 , wherein the abundance of deuterium in R 12 -R 17 is selected from at least 17%, at least 33%, at least 50%, at least 67%, at least 83%, and 100%.
8 . A deuterium-enriched compound of claim 1 , wherein the abundance of deuterium in R 18 -R 21 is selected from at least 25%, at least 50%, at least 75%, and 100%.
9 . A deuterium-enriched compound of claim 1 , wherein the compound is selected from compounds 1-7 of Table 1.
10 . A deuterium-enriched compound of claim 1 , wherein the compound is selected from compounds 8-14 of Table 2.
11 . An isolated deuterium-enriched compound of formula I or a pharmaceutically acceptable salt thereof:
wherein R 1 -R 2 , are independently selected from H and D; and
the abundance of deuterium in R 1 -R 21 is at least 5%, provided that when R 18 is D, then at least one other R is D.
12 . An isolated deuterium-enriched compound of claim 11 , wherein the abundance of deuterium in R 1 -R 21 is selected from at least 5%, provided that when R 18 is D, then at least one other R is D. The abundance can also be at least 10%, at least 14%, at least 19%, at least 24%, at least 29%, at least 33%, at least 38%, at least 43%, at least 48%, at least 52%, (k) at least 57%, at least 62%, at least 67%, at least 71%, at least 76%, at least 81%, at least 86%, at least 90%, at least 95%, and 100%.
13 . An isolated deuterium-enriched compound of claim 11 , wherein the abundance of deuterium in R 1 is selected from at least 100%.
14 . An isolated deuterium-enriched compound of claim 11 , wherein the compound is selected from compounds I-7 of Table 1.
15 . An isolated deuterium-enriched compound of claim 11 , wherein the compound is selected from compounds 8-14 of Table 2.
16 . A mixture of deuterium-enriched compounds of formula I or a pharmaceutically acceptable salt thereof:
wherein R 1 -R 2 , are independently selected from H and D; and
the abundance of deuterium in R 1 -R 21 is at least 5%, provided that when R 18 is D, then at least one other R is D.
17 . A mixture of deuterium-enriched compound of claim 16 wherein the compound is selected from compounds I-7 of Table 1.
18 . A mixture of deuterium-enriched compound of claim 16 wherein the compound is selected from compounds 8-14 of Table 2.
19 . A pharmaceutical composition, comprising: a pharmaceutically acceptable carrier and a therapeutically effective amount of a compound of claim 1 or a pharmaceutically acceptable salt form thereof.
20 . A method for treating sleep maintenance insomnia comprising: administering, to a patient in need thereof, a therapeutically effective amount of a compound of claim 1 or a pharmaceutically acceptable salt form thereof.