Palladium Catalyzed C−O Coupling of Amino Alcohols for the Synthesis of Aryl Ethers
作者:Malte S. Mikus、Carina Sanchez、Cary Fridrich、Jay F. Larrow
DOI:10.1002/adsc.201901302
日期:2020.1.23
containing aryl ethers are common pharmacophore motifs that continue to emerge from drug discovery efforts. As aminoalcohols are readily available building blocks, practical methodologies for incorporating them into more complex structures are highly desirable. We report our efforts to explore the application of Pd‐catalyzed C−O coupling methods to the arylation of 1,2‐ and 1,3‐aminoalcohols. We established
The present invention provides a 2,3-dihydro-6-nitroimidazo[2,1-b]oxazole compound represented by the following general formula:
wherein R
1
represents a hydrogen atom or C1-C6 alkyl group, n represents an integer of 0 to 6, R
2
represents a group —OR
3
or the like, and R
3
represents a hydrogen atom, C1-C6 alkyl group or the like, or R
1
and —(CH
2
)
n
R
2
may bind to each other together with carbon atoms adjacent thereto through nitrogen atoms so as to form a spiro ring represented by the general formula (H):
wherein R
41
is hydrogen, C1-C6 alkyl group or the like. The present compound has an excellent bactericidal action against
Mycobacterium tuberculosis
, multi-drug-resistant
Mycobacterium tuberculosis
, and atypical acid-fast bacteria.
A compound of formula (I) wherein: R
1
and R
2
, which may be the same or different, is each a hydrogen atom or a CF
3
, CF
2
H or CFH
2
group, provided that when one of R?
1
or R
2
is a hydrogen atom the other is a CF
3
, CF
2
H or CFH
2
group; and the salts, solvates or hydrates thereof. The compounds are potent MMP inhibitors which advantageously do not cause tendonitis in a relevant animal model. The compounds may be expected to be of use in medicine, especially where the avoidance of side effects such as joint pain is desired.
The present invention provides a 2,3-dihydro-6-nitroimidazo[2,1-b]oxazole compound represented by the following general formula:
wherein R1 represents a hydrogen atom or C1-C6 alkyl group, n represents an integer of 0 to 6, R2 represents a group —OR3 or the like, and R3 represents a hydrogen atom, C1-C6 alkyl group or the like, or R1 and —(CH2)nR2 may bind to each other together with carbon atoms adjacent thereto through nitrogen atoms so as to form a spiro ring represented by the general formula (H):
wherein R41 is hydrogen, C1-C6 alkyl group or the like. The present compound has an excellent bactericidal action against Mycobacterium tuberculosis, multi-drug-resistant Mycobacterium tuberculosis, and atypical acid-fast bacteria.
[EN] NOVEL COMPOUNDS SUITABLE FOR THE TREATMENT OF DYSLIPIDEMIA<br/>[FR] NOUVEAUX COMPOSÉS APPROPRIÉS POUR LE TRAITEMENT DE LA DYSLIPIDÉMIE
申请人:CADILA HEALTHCARE LTD
公开号:WO2022130352A1
公开(公告)日:2022-06-23
Present invention relates to compounds of general formula (I), their tautomeric forms, stereoisomers, pharmaceutically acceptable salts and pharmaceutical composition containing them. Invention also relates to process for the preparation of compounds of general formula (I) and intermediates thereof. Compounds of present invention can be useful in treating diseases such as hyperlipidemia and other disorders related to hyperlipidemia. Compounds of present invention also have a beneficial effect on lowering cholesterol.