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|Title:||Modulators of CFTR|
|Abstract:||Compounds of the present invention, and pharmaceutically acceptable compositions thereof, are useful as modulators of ATP-Binding Cassette ("ABC") transporters or fragments thereof, including Cystic Fibrosis Transmembrane Conductance Regulator ("CFTR"). The present invention also relates to methods of treating ABC transporter mediated diseases using compounds of the present invention.|
|Inventor(s):||Hadida Ruah; Sara S. (La Jolla, CA), Miller; Mark (San Diego, CA), Bear; Brian (Oceanside, CA), Zhou; Jinglan (San Diego, CA), McCartney; Jason (Cardiff by the Sea, CA), Grootenhuis; Peter (San Diego, CA)|
|Assignee:||Vertex Pharmaceuticals Incorporated (Cambridge, MA)|
|Filing Date:||May 09, 2008|
|Claims:||1. A compound of formula I: ##STR00023## or a pharmaceutically acceptable salt thereof, wherein independently for each occurrence: m is 0-4; R.sub.M is Z.sup.MR.sub.11, wherein each Z.sup.M is a bond or an optionally substituted branched or straight C.sub.1-6 aliphatic chain wherein up to two carbon units of Z.sup.M are optionally replaced by --CO--, --CS--, --CONR.sup.N--, --CO.sub.2--, --OCO--, --NR.sup.NCO.sub.2--, --O--, --OCONR.sup.N--, --NR.sup.NCO--, --S--, --SO--, --SO.sub.2--, or --NR.sup.N--; R.sub.11 is R.sup.N, halo, --OH, --NH.sub.2, --NO.sub.2, --CN, --CF.sub.3, or --OCF.sub.3; R.sup.N is H or an optionally substituted C1-C8 aliphatic; R.sub.1 is a C1-C6 aliphatic; R.sub.2 is H or an optionally substituted C1-C6 aliphatic; R.sub.3 and R'.sub.3 together with the carbon atom to which they are attached form an unsubstituted C.sub.3-7 cycloalkyl ring; and R4 is: ##STR00024## |
2. The compound of claim 1, wherein R.sub.1 is an optionally substituted C1-C4 aliphatic.
3. The compound of claim 1, wherein R.sub.1 is an optionally substituted C1-C4 alkyl.
4. The compound of claim 1, wherein R.sub.1 is methyl, ethyl, propyl, or butyl.
5. The compound of claim 1, wherein R.sub.2 is H.
6. The compound of claim 1, wherein R.sub.2 is a C1-C6 aliphatic.
7. The compound of claim 1, wherein R.sub.2 is a C1-C6 alkyl.
8. The compound of claim 1, wherein R.sub.2 is methyl, ethyl, propyl, butyl, pentyl, or hexyl.
9. The compound of claim 1, wherein R.sub.3 and R'.sub.3 taken together form a cyclopropyl ring.
10. The compound of claim 1, wherein R.sub.3 and R'.sub.3 taken together form a cyclopentyl ring.
11. The compound of claim 1, wherein R.sub.4 is ##STR00025##
12. The compound of claim 1, wherein R.sub.4 is ##STR00026##
13. The compound of claim 1, wherein m is 0.
14. The compound of claim 1, having formula II: ##STR00027##
15. The compound of claim 14, wherein R.sub.1 is methyl.
16. The compound of claim 14, wherein m is 0.
17. The compound of claim 1, having formula III: ##STR00028##
18. The compound of claim 17, wherein R.sub.1 is methyl.
19. The compound of claim 17, wherein m is 0.
20. The compound of claim 1, wherein the compound is ##STR00029##
21. A pharmaceutical composition comprising: (i) a compound according to claim 1; and (ii) a pharmaceutically acceptable carrier.
22. The composition according to claim 21, further comprising a mucolytic agent, a bronchodialator, an antibiotic, an anti-infective agent, an anti-inflammatory agent, a CFTR modulator, or a nutritional agent.
23. A method of modulating CFTR activity comprising the step of contacting said CFTR with a compound according to claim 1.
24. A method of treating or lessening the severity of a disease in a patient, wherein said disease is selected from cystic fibrosis, hereditary emphysema, or COPD, said method comprising the step of administering to said patient an effective amount of a compound according to claim 1.
25. A kit for use in measuring the activity of CFTR or a fragment thereof in a biological sample in vitro or in vivo, comprising: (i) a compound according claim 1; and (ii) instructions for: a) contacting the compound with the biological sample; and b) measuring activity of said CFTR or a fragment thereof.
26. The kit according to claim 25, further comprising instructions for a) contacting an additional compound with the biological sample; b) measuring the activity of said CFTR or a fragment thereof in the presence of said additional compound, and c) comparing the activity of said CFTR in the presence of the additional compound with the activity of said CFTR in the presence of a compound of claim 1.
27. The method of claim 24, wherein the disease is cystic fibrosis.
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