HETEROAROMATIC COMPOUNDS HAVING SPHINGOSINE-1-PHOSPHATE (S1P) RECEPTOR AGONIST BIOLOGICAL ACTIVITY
申请人:Beard Richard L.
公开号:US20080064872A1
公开(公告)日:2008-03-13
A novel compound having agonist activity at the S
1
P
3
receptor which is represented by the formula I
wherein
X is selected from the group consisting of CR
3
, N and NO;
Y is selected from the group consisting of CR
3
, N and NO;
Z is selected from the group consisting of CR
3
, N and NO;
and at least one of X, Y and Z is N or NO;
V is O or NOR
4
R
1
is an aryl group;
R
2
is an aryl group;
R
3
is selected from the group consisting of H and alkyl; and 2 of
said R
3
groups may together form a cyclic alkyl ring having from 3 to 6 carbon atoms;
R
4
is selected from the group consisting of H and alkyl;
a is 0 or an integer of from 1 to 6;
b is 0 or 1;
c is 0 or 1;
f is 0 or an integer of 1 or 2;
x is 0 or 1;
y is 0 or an integer of from 1 to 3; and
z is 0 or an integer of from 1 to 3.
The reaction of 1,2,4-triazines (1) and 1-cyclopentenylpyrrolidine (2) afforded 6,7-dihydro-5H-[2]-pyrindines (3) in good yields. Oxidation of 3 to the N-oxides (4), reaction of 4 with acetic anhydride to 5-acetoxy-6,7-dihydro-5H-[2]pyrindines (5) and elimination of acetic acid afforded [2]pyrindines (7). 2-Methyl-2H-[2]pyrindines (9) were also prepared.
Direct Conversion of Heteroaromatic Esters to Methyl Ketones with Trimethylaluminum: Nonsymmetrically Disubstituted 1,2,4,5-Tetrazines
作者:Marc Girardot、Rana Nomak、John K. Snyder
DOI:10.1021/jo9815352
日期:1998.12.1
MUELLER, K.;SAUER, J., TETRAHEDRON LETT., 1984, 25, N 24, 2541-2544
作者:MUELLER, K.、SAUER, J.
DOI:——
日期:——
NEUNHOEFFER, H.;BACHMANN, M., LIEBIGS ANN. CHEM., 1985, N 6, 1263-1271