申请人:Ali Amjad
                            
                            
                                公开号:US20130059823A1
                            
                            
                                公开(公告)日:2013-03-07
                            
                            A compound having the structure (I) or a pharmaceutically acceptable salt thereof, wherein R
3
is hydrogen, deuterium, —OH, —OC
1-6
alkyl, or halogen; R
8
is hydrogen, deuterium, or C
1-6
alkyl; R
11
and R
12
are independently hydrogen, —C
1-6
alkyl, —OH, —OC
1-6
alkyl, or halogen; R
13
and R
14
are independently —C
1-6
alkyl, —(CH
2
)
1-2
OH, or —OC
1-6
alkyl, or, together with the nitrogen atom to which they are attached, form a
4
- to
7
-membered heterocyclic ring containing one nitrogen atom and
0
or
1
oxygen atoms, wherein said ring is unsubstituted or mono-, di- or tri-substituted with halogen or —C
1-6
alkyl; R
15
is (CR
1
R
2
)
n
C(O)OR
16
, wherein n is
0, 1
or
2
, —C(O)NHCH(R
17
)OR
16
, or —C(O)NHCH(R
17
)C(O)NHCH(R
18
)C(O)OR
16
; R
16
is hydrogen, C
1-6
alkyl, or (CH
2
)
1-2
N+R
19
R
20
R
21
; R
1
, R
2
, R
4
, R
5
, R
6
, R
7
, R
9
, R
10
, R
17
, R
18
, R
19
, R
20
, and R
21
are independently hydrogen or —C
1-6
alkyl; and stereoisomers thereof, and pharmaceutically acceptable salts thereof, and pharmaceutically acceptable salts of stereoisomers thereof.