申请人:Wang Shouming
公开号:US20070185060A1
公开(公告)日:2007-08-09
A thrombin inhibitor selected from boronic acids of formula (I), and salts, prodrugs and prodrug salts thereof: wherein X is H (to form NH
2
) or an amino-protecting group; aa
1
is an amino acid residue having a side chain selected from formula (A) and (B)—(CO)
a
—(CH
2
)
b
-D
c
-(CH
2
)
d
-E (A), —(CO)
a
—(CH
2
)
b
-D
c
-C
e
(E
1
)(E
2
)(E
3
) wherein E
1
, E
2
and E
3
are 5-6 membered saturated or unsaturated hydrocarbyl rings, or one of E
1
, E
2
and E
3
is hydrogen and the other two are a said hydrocarbyl ring, E, E
1
, E
2
and E
3
optionally being halogenated when saturated and mandatorily being halogenated when unsaturated, a particular halogen being fluorine; aa
2
is a residue of an amino acid which binds to the thrombin S2 subsite; and R
9
is a straight chain alkyl group interrupted by one or more ether linkages or R
9
is —(CH2)mW and W is —OH or halogen.