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US 2026/0152509 A1Published application
Delivery of therapeutic alkaloid compounds
AssigneeSensorium Therapeutics, Inc.
InventorJacob M. Hooker
Life of this patent
Estimating the term…
Abstract
Disclosed are compounds that can be converted to mesembrenone under biologically relevant conditions, such as acid hydrolysis at body temperature; and related methods of preparing and using these compounds. Stable preparations of isolated mesembrenone stereoisomers are also provided.
Claims21
1-84. (canceled)
A compound of formula (I):
- or a pharmaceutically acceptable salt thereof, wherein:
- R1 is C1-C7 alkyl or H;
- and
- ring A is
- wherein* denotes the attachment points of ring A to the compound of formula (I), and wherein
- each of W and Z is independently O, NH, or S;
- each R2 is independently C1-C3 alkyl, C2-C6 alkenyl, —COOH, —CONH2, phenyl, 5- to 7-membered heterocyclyl, or 5- to 7-membered heteroaryl, wherein each hydrogen atom in C1-C3 alkyl, C2-C6 alkenyl, phenyl, 5- to 7-membered heterocyclyl and 5- to 7-membered heteroaryl is optionally substituted by —OH, C1-C3 alkyl, C1-C3 alkoxy, aryloxy, C1-C3 alkanol, or —NO2, wherein each hydrogen atom in C1-C3 alkoxy and aryloxy is optionally substituted by C1-C3 alkoxy or phenyl;
- or two R2s on a single carbon atom combine to form ═O;
- or two adjacent R2s together with the carbon atoms to which they are attached combine to form 5- to 7-membered heteroaryl, wherein each hydrogen atom in 5- to 7-membered heteroaryl is optionally substituted by —OH, C1-C3 alkyl, or C1-C3 alkanol;
- m is 1 or 2;
- n is 0, 1, 2, or 3;
- R3 is —OSi(C1-C6 alkyl)3, —OC(O)C1-C6 alkyl, —OC(O)C2-C6 alkenyl, —OC(O)C3-C10 cycloalkyl, —OC(O)phenyl, —OC(O)-5- to 7-membered heteroaryl, wherein each hydrogen atom in C1-C6 alkyl, C2-C6 alkenyl, C3-C1O cycloalkyl, phenyl, and 5- to 7-membered heteroaryl is optionally substituted by halogen, C1-C6 alkyl, C1-C3 alkoxy, nitro, —N(C1-C3 alkyl)2, C1-C3 haloalkyl, cyano, phenyl, or phenoxy;
- R4 is —OR5 or —N(R5)2;
- each R5 is H, C1-C6 alkyl, C3-C6 heterocycloalkyl, C3-C1O cycloalkyl, C1-C6 alkoxy, phenyl, 5- to 10-membered heteroaryl, —C(O)-5- to 7-membered heteroaryl, —C(O)—C1-C8alkyl, —C(O)—C3-C1O cycloalkyl, —C(O)-phenyl, —C(O)N(H)-phenyl, —C(O)N(H)-5- to 7-membered heteroaryl, —C(O)N(H)—C1-C6 alkyl, —C(O)C(O)OH, or —CONH2, wherein each hydrogen atom in C1-C6 alkyl, C3-C6 heterocycloalkyl, C3-C1O cycloalkyl, C1-C6 alkoxy, phenyl, 5- to 10-membered heteroaryl, —C(O)-5- to 7-membered heteroaryl, —C(O)—C1-C8 alkyl, —C(O)—C3-C1O cycloalkyl, —C(O)-phenyl, —C(O)N(H)-phenyl, —C(O)N(H)-5- to 7-membered heteroaryl, and —C(O)N(H)—C1-C6 alkyl is optionally substituted by halogen, OH, C1-C3 alkyl, C3-C10 cycloalkyl optionally substituted by —COOH, phenyl, 5- to 7-membered heteroaryl, aryloxy, C1-C6 alkoxy, C1-C3 alkanol, C3-C6 heterocycloalkyl optionally substituted with methyl, —COOH, —S(O)2CH3, —C(O)C1-C6 alkyl, or —C(O)OC1-C6 alkyl;
- and
- each of R6 and R7 is independently C1-C3 alkyl.
13 more elements
A compound of formula (IA):
- or a pharmaceutically acceptable salt thereof, wherein
- R10 and R11 are acid hydrolysable moieties that are hydrolysed to a ketone moiety after 24 hours at a pH of 2 (0.01 M HCl) and a temperature of 37° C. in the Hydrolysis Assay of Example A1;
- wherein at least about 10% of the compound of Formula (IA) is hydrolysed to mesembrenone as measured by HPLC after 24 hours at a pH of 2.0 (0.01M HCl) and a temperature of 37° C. in the Hydrolysis Assay of Example A1.
A compound of formula (V):
- or a pharmaceutically acceptable salt thereof, wherein
- ring A is
- wherein * denotes the attachment points of ring A to the compound of formula (V), and wherein
- R6 is C1-C3 alkyl;
- X1 is >L-R14, wherein L is absent or a linker and where > denotes the two single bonds to the cyclohexane ring such that the ring containing X1 forms a C3-C6 alkyl ring, which is optionally substituted by C1-C3 alkanol;
- X2 is =L-R14, wherein L is absent or a linker;
- X3 is -L-R14, wherein L is absent or a linker;
- and
- wherein -L-R14 is selected from
- and
- the * denotes the carbon of the cyclohexyl ring when L is absent.
8 more elements
Dependencies are inferred from the claim text.