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US 2026/0258060 A1Published application
Boronic acid derivatives and therapeutic uses thereof
AssigneeQpex Biopharma, Inc.
InventorsScott J. Hecker, Raja K. Reddy, Tomasz Glinka, Olga Rodny
Life of this patent
Estimating the term…
Abstract
Disclosed herein are antimicrobial compounds compositions, pharmaceutical compositions, the method of use and preparation thereof. Some embodiments relate to boronic acid derivatives and their use as therapeutic agents, for example, β-lactamase inhibitors (BLIs).
Claims21
A method of synthesizing a compound having the structure
- or a salt thereof, comprising:
- (a) reacting
- with acrylic acid in the presence of a first palladium complex to form a first intermediate
- (b) reacting the first intermediate with bromine to form a second intermediate
- (c) reacting the second intermediate with triethylamine to form a third intermediate
- (d) reacting the third intermediate with bis((+)pinanediolato)diboron in the presence of a second palladium complex to form a fourth intermediate
- (e) reacting the fourth intermediate with diazomethane in the presence of a third palladium complex to form a fifth intermediate
- (f) deprotecting the fifth intermediate to arrive at
- or a salt thereof.
6 more elements
A method of synthesizing a compound having the structure
- or a salt thereof, comprising:
- (a) reacting
- with bis(pinacolato)diboron in the presence of a first palladium complex to form a first intermediate
- (b) deprotecting the first intermediate to form a second intermediate
- (c) reacting the second intermediate with
- to form a third intermediate
- (d) reacting the third intermediate with diiodomethane form a fourth intermediate
- (e) reacting the fourth intermediate with (+)-pinanediol to form a fifth intermediate
- (f) deprotecting the fifth intermediate to arrive at
- or a salt thereof.
7 more elements
A compound of formula I-3, having the structure
- wherein
- Z is —B(OR″′)2;
- each of R′, R″ and R″′ is independently a hydroxy protecting group, R′, R″′ with the oxygen atoms to which they are attached form an acetal protecting group;
- each of J, L, and M is independently CR12 or N (nitrogen);
- R12 is selected from the group consisting of hydrogen, amino, halogen, cyano, hydroxy, optionally substituted C1-6 alkyl, optionally substituted C1-6 haloalkyl, optionally substituted C1-6 alkoxy, optionally substituted C1-6 haloalkoxy, optionally substituted (C1-6 alkoxy)C1-6 alkyl, optionally substituted C2-10alkenyl, optionally substituted C2-10alkynyl, optionally substituted C3-7 carbocyclyl, optionally substituted 3-10 membered heterocyclyl, optionally substituted C6-10aryl, optionally substituted 5-10 membered heteroaryl, optionally substituted (C3-7carbocyclyl)C1-6alkyl, optionally substituted (3-10 membered heterocyclyl)C1-6 alkyl, optionally substituted (C6-10 aryl)C1-6 alkyl, (C6-10 aryl)C1-6 alkoxy, optionally substituted (5-10 membered heteroaryl)C1-6 alkyl, acyl, C-carboxy, O-carboxy, C-amido, N-amido, S-sulfonamido, N-sulfonamido, sulfhydryl, —C(O)(CH2)0-3SRc, —C(O)(CH2)1-3Rd, —NRfC(O)NRfRg, —NRfS(O)2NRfRg, —C(═NRe)Rc, —C(═NRe)NRfRg, —NRfCRc(═NRe), —NRfC(═NRe)NRfRg, —S(O)(CH2)1-3Rc, —NRfS(O)2NRfORd, and —(CH2)p—Y6—(CH2)qK;
- Y6 is selected from the group consisting of —S—, —S(O)—, —S(O)2—, —O—, —CRfRg—, and —NRf—;
- K is selected from the group consisting of C-amido;
- N-amido;
- S-sulfonamido;
- N-sulfonamido;
- —NRfC(O)NRfRg;
- —NRfS(O)2NRfRg;
- —C(═NRe)Rc;
- —C(═NRe)NRfRg;
- —NRfCRc(═NRe);
- —NRfC(═NRc)NRfRg;
- C1-4 alkyl optionally substituted with 0-2 substituents selected from the group consisting of C1-4 alkoxy, amino, halogen, C-amido, and N-amido;
- C6-10 aryl optionally substituted with 0-2 substituents selected from the group consisting of C1-4 alkyl, C1-4 alkoxy, amino, halogen, C-amido, and N-amido;
- C3-7 carbocyclyl optionally substituted with 0-2 substituents selected from the group consisting of C1-4 alkyl, C1-4 alkoxy, amino, halogen, C-amido, and N-amido;
- 5-10 membered heteroaryl optionally substituted with 0-2 substituents selected from the group consisting of C1-4 alkyl, C1-4 alkoxy, amino, halogen, C-amido, and N-amido;
- and 3-10 membered heterocyclyl optionally substituted with 0-2 substituents selected from the group consisting of C1-4 alkyl, C1-4 alkoxy, amino, halogen, C-amido, and N-amido;
- each Rc, Rd, Re, Rf, and Rg are independently selected from the group consisting of H, halogen, optionally substituted C1-4alkyl, optionally substituted C3-7 carbocyclyl, optionally substituted 3-10 membered heterocyclyl, optionally substituted C6-10aryl, and optionally substituted 5-10 membered heteroaryl;
- and
- each p and q is independently 0 or 1.
21 more elements
A compound of formula I-4, having the structure
- wherein
- Z is —B(OR″′)2;
- each of R′, R″ and R″′ is independently a hydroxy protecting group, or R′, R″ with the oxygen atoms to which they are attached form an acetal protecting group;
- Y2 is absent;
- n is an integer of 0 or 1;
- G is selected from the group consisting of H, amino, halogen, cyano, hydroxy, optionally substituted C1-6 alkyl, optionally substituted C1-6 haloalkyl, optionally substituted C1-6 alkoxy, optionally substituted C1-6 haloalkoxy, optionally substituted (C1-6 alkoxy)C1-6 alkyl, optionally substituted C2-10alkenyl, optionally substituted C2-10alkynyl, optionally substituted C3-7 carbocyclyl, optionally substituted 3-10 membered heterocyclyl, optionally substituted C6-10aryl, optionally substituted 5-10 membered heteroaryl, optionally substituted (C3-7carbocyclyl)C1-6 alkyl, optionally substituted (3-10 membered heterocyclyl)C1-6 alkyl, optionally substituted (C6-10 aryl)C1-6 alkyl, (C6-10 aryl)C1-6 alkoxy, optionally substituted (5-10 membered heteroaryl)C1-6 alkyl, acyl, C-carboxy, O-carboxy, C-amido, N-amido, S-sulfonamido, N-sulfonamido, —SRc, —C(O)(CH2)0-3SRc, —C(O)(CH2)1-3Rd, —NRfC(O)NRfRg, —NR'S(O)2NRfRg, —C(═NRe)Rc, —C(═NRc)NRfRg, —NRfCRc(═NRe), —NRfC(═NRe)NRfRg, —S(O)(CH2)1-3Rc, and —NRfS(O)2NRfORd;
- each of J, L, and M is independently CR12 or N (nitrogen);
- R12 is selected from the group consisting of hydrogen, amino, halogen, cyano, hydroxy, optionally substituted C1-6 alkyl, optionally substituted C1-6 haloalkyl, optionally substituted C1-6 alkoxy, optionally substituted C1-6 haloalkoxy, optionally substituted (C1-6 alkoxy)C1-6 alkyl, optionally substituted C2-10alkenyl, optionally substituted C2-10alkynyl, optionally substituted C3-7 carbocyclyl, optionally substituted 3-10 membered heterocyclyl, optionally substituted C6-10aryl, optionally substituted 5-10 membered heteroaryl, optionally substituted (C3-7carbocyclyl)C1-6alkyl, optionally substituted (3-10 membered heterocyclyl)C1-6 alkyl, optionally substituted (C6-10 aryl)C1-6 alkyl, (C6-10 aryl)C1-6 alkoxy, optionally substituted (5-10 membered heteroaryl)C1-6 alkyl, acyl, C-carboxy, O-carboxy, C-amido, N-amido, S-sulfonamido, N-sulfonamido, sulfhydryl, —C(O)(CH2)0-3SRc, —C(O)(CH2)1-3Rd, —NRfC(O)NRfRg, —NRfS(O)2NRfRg, —C(═NRe)Rc, —C(═NRe)NRfRg, —NRfCRc(═NRe), —NRfC(═NRe)NRfRg, —S(O)(CH2)1-3Rc, —NRfS(O)2NRfORd, and —(CH2)p—Y6—(CH2)qK;
- Y6 is selected from the group consisting of —S—, —S(O)—, —S(O)2—, —O—, —CRfRg—, and —NRf—;
- K is selected from the group consisting of C-amido;
- N-amido;
- S-sulfonamido;
- N-sulfonamido;
- —NRfC(O)NRfRg;
- —NRfS(O)2NRfRg;
- —C(═NRe)Rc;
- —C(═NRe)NRfRg;
- —NRfCRc(═NRe);
- —NRfC(═NRc)NRfRg;
- C1-4 alkyl optionally substituted with 0-2 substituents selected from the group consisting of C1-4 alkoxy, amino, halogen, C-amido, and N-amido;
- C6-10 aryl optionally substituted with 0-2 substituents selected from the group consisting of C1-4 alkyl, C1-4 alkoxy, amino, halogen, C-amido, and N-amido;
- C3-7 carbocyclyl optionally substituted with 0-2 substituents selected from the group consisting of C1-4 alkyl, C1-4 alkoxy, amino, halogen, C-amido, and N-amido;
- 5-10 membered heteroaryl optionally substituted with 0-2 substituents selected from the group consisting of C1-4 alkyl, C1-4 alkoxy, amino, halogen, C-amido, and N-amido;
- and 3-10 membered heterocyclyl optionally substituted with 0-2 substituents selected from the group consisting of C1-4 alkyl, C1-4 alkoxy, amino, halogen, C-amido, and N-amido;
- each Rc, Rd, Re, Rf, and Rg are independently selected from the group consisting of H, halogen, optionally substituted C1-4alkyl, optionally substituted C3-7 carbocyclyl, optionally substituted 3-10 membered heterocyclyl, optionally substituted C6-10aryl, and optionally substituted 5-10 membered heteroaryl;
- and
- each p and q is independently 0 or 1.
24 more elements
Dependencies are inferred from the claim text.