Synthesis of ( R )- and ( S )-α-trifluoromethyl propanoic acids via asymmetric hydrogenation followed by salt resolution
摘要:
A highly enantioselective synthesis of (R)- and (S)-alpha-trifluoromethyl (CF3) propanoic acids has been achieved via asymmetric hydrogenation of 2-trifluoromethylacrylic acid using RuBINAP-Cl-2 catalyst followed by salt resolution with threoninol. Both enantiomers can be obtained as threoninol salts in good yield and with high enantiomeric excess. Amide coupling conditions that minimize racemization of the chiral acid have also been developed. (C) 2016 Elsevier Ltd. All rights reserved.
The present invention comprises compounds of Formula I.
wherein:
R
1
, R
3
, R
4
, R
5
, R
6
, and Q are defined in the specification.
The invention also comprises a method of treating or ameliorating a ROR-γ-t mediated syndrome, disorder or disease, including wherein the syndrome, disorder or disease is selected from the group consisting of rheumatoid arthritis, psoriatic arthritis, and psoriasis. The invention also comprises a method of modulating RORγt activity in a mammal by administration of a therapeutically effective amount of at least one compound of Formula I.
PHENYL SUBSTITUTED PYRAZOLES AS MODULATORS OF RORgT
申请人:Janssen Pharmaceutica NV
公开号:US20190382349A1
公开(公告)日:2019-12-19
The present invention comprises compounds of Formula I.
wherein:
R
1
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, and Q are defined in the specification.
The invention also comprises a method of treating or ameliorating a ROR-γ-t mediated syndrome, disorder or disease, including wherein the syndrome, disorder or disease is selected from the group consisting of rheumatoid arthritis, psoriatic arthritis, and psoriasis. The invention also comprises a method of modulating RORγt activity in a mammal by administration of a therapeutically effective amount of at least one compound of Formula I.