A JAK inhibitor comprising, as an active ingredient, a nitrogen-containing heterocyclic compound represented by formula (I)
wherein W represents a nitrogen atom or -CH-;
X represents -C (=O) - or -CHR4- (wherein R4 represents a hydrogen atom, or the like);
R1 represents the formula described below [wherein Q1 represents-CR8-(wherein R8 represents a hydrogen atom, substituted or unsubstituted lower alkyl, or the like);
Q2 represents -NR15- (wherein R15 represents a hydrogen atom, substituted or unsubstituted lower alkyl, or the like); and R5 and R6 may be the same or different and each represents a hydrogen atom, halogen, carboxy, substituted or unsubstituted lower alkyl, or the like], or the like; and
R2 and R3 may be the same or different and each represents a hydrogen atom, halogen, substituted or unsubstituted lower alkyl, or the like} or a pharmaceutically acceptable salt thereof.
Compounds of Formulae I, or pharmaceutically acceptable salts thereof:
wherein A
1
, A
2
, G
1
, G
2
G
3
, R
1
, R
2
, X, Y, Z, m, n and p are as defined in the specification as well as salts and pharmaceutical compositions including the compounds are prepared. They are useful in therapy, in particular in the management of pain.
Base-induced Sommelet–Hauser rearrangement of N-(pyridinylmethyl) tetraalkylammonium salts
作者:Eiji Tayama、Goshu Shimizu、Ryo Nakao
DOI:10.1016/j.tet.2022.132721
日期:2022.4
of N-(pyridinylmethyl) tetraalkylammonium salts 2 to produce N,N-dialkyl-α-pyridinylamino acid esters 4 was investigated. For example, a treatment of N-(2-pyridinylmethyl) glycine tert-butyl ester-derived tetraalkylammonium salt 2a with 1.2 equivalents of potassium tert-butoxide in THF at −40 °C gave the corresponding S–H product, tert-butyl 2-(dimethylamino)-2-(2-methylpyridin-3-yl)acetate (4a), in
The present invention provides a nitrogen-containing heterocyclic compound represented by formula (I):
wherein W represents a nitrogen atom or —CH—;
X represents —C(═O)— or —CHR
4
— (wherein R
4
represents a hydrogen atom, or the like);
R
1
represents a group represented by the following formula:
[wherein Q
1
represents a nitrogen atom or —CR
8
— (wherein R
8
represents a hydrogen atom, substituted or unsubstituted lower alkyl, or the like). Q
2
represents —NR
15
— (wherein R
15
represents a hydrogen atom, or the like) and R
5
and R
6
may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, or the like]; and
R
2
and R
3
may be the same or different and each represents a hydrogen atom, halogen, substituted or unsubstituted lower alkyl, or the like} or a pharmaceutically acceptable salt thereof, and the like.
Compounds of Formulae I, or pharmaceutically acceptable salts thereof:
wherein A1, A2, G1, G2 G3, R1, R2, X, Y, Z, m, n and p are as defined in the specification as well as salts and pharmaceutical compositions including the compounds are prepared. They are useful in therapy, in particular in the management of pain.