Terminally-branched polymeric linkers containing extension moieties and polymeric conjugates containing the same
申请人:——
公开号:US20020015691A1
公开(公告)日:2002-02-07
E
1a-3a
are independently selected from the group consisting of hydrogen, C
1-6
alkyls, C
3-12
branched alkyls, C
3-8
cycloalkyls, C
1-6
substituted alkyls, C
3-8
substituted cycloalkyls, aryls, substituted aryls, aralkyls, C
1-6
heteroalkyls, substituted C
1-6
heteroalkyls, C
1-6
alkoxy, phenoxy, C
1-6
heteroalkoxy,
1
wherein B
1
is a leaving group, OH, a residue of a hydroxyl-containing moiety or a residue of an amine-containing moiety or
2
wherein E
6
is independently selected from the same group which defines
3
wherein E
1b-3b
are independently selected from the group consisting of hydrogen, C
1-6
alkyls, C
3-12
branched alkyls, C
3-8
cycloalkyls, C
1-6
substituted alkyls, C
3-8
substituted cycloalkyls, aryls, substituted aryls, aralkyls, C
1-6
heteroalkyls, substituted C
1-6
heteroalkyls, C
1-6
alkoxy, phenoxy, C
1-6
heteroalkoxy,
4
wherein B
2
is a leaving group, OH, a residue of a hydroxyl-containing moiety or a residue of an amine-containing moiety;
G is a polymeric residue;
Y
1-3, Y
2a-d
and Y
3a-d
are each independently O, S or NR
11a
M
1-4
, M
2a-2d
, M
3a-3d
, and M
4a-4d
are each independently O, S or NR
11b
;
M
5
and M
5a-d
are each independently X or Q,
wherein X is an electron withdrawing group and Q is a moiety containing a free electron pair positioned three to six atoms from C(═Y
3
) or C(═Y
3a-d
);
R
1-10
, R
1a-11a
, R
1b-11b
, R
1c-10c
and R
1d-10d
are each independently selected from the group consisting of hydrogen, C
1-6
alkyls, C
3-12
branched alkyls, C
3-8
cycloalkyls, C
1-6
substituted alkyls, C
3-8
substituted cycloalkyls, aryls, substituted aryls, aralkyls, C
1-6
heteroalkyls, substituted C
1-6
heteroalkyls, C
1-6
alkoxy, phenoxy and C
1-6
heteroalkoxy; and
a, b, c, d1-d6, e1-e6, f1-f6, g1-g6, h1-h6, i1-i6, j1-j6, k1-k6, l1-l6, m1-m6 are each independently zero or a positive integer.
E1a-3a分别独立选自氢、C1-6烷基、C3-12支链烷基、C3-8环烷基、C1-6取代烷基、C3-8取代环烷基、芳基、取代芳基、芳基烷基、C1-6杂原子烷基、取代的C1-6杂原子烷基、C1-6烷氧基、苯氧基、C1-6杂原子烷氧基;其中B1是一个脱离基团、OH、含羟基团的残基或含胺基团的残基;E6独立选自定义3的相同组中;E1b-3b独立选自氢、C1-6烷基、C3-12支链烷基、C3-8环烷基、C1-6取代烷基、C3-8取代环烷基、芳基、取代芳基、芳基烷基、C1-6杂原子烷基、取代的C1-6杂原子烷基、C1-6烷氧基、苯氧基、C1-6杂原子烷氧基;其中B2是一个脱离基团、OH、含羟基团的残基或含胺基团的残基;G是聚合物残基;Y1-3、Y2a-d和Y3a-d分别独立为O、S或NR11a;M1-4、M2a-2d、M3a-3d和M4a-4d分别独立为O、S或NR11b;M5和M5a-d分别独立为X或Q,其中X是一个电子吸引基团,Q是一个含有自由电子对的团,其位置距离C(═Y3)或C(═Y3a-d)三到六个原子;R1-10、R1a-11a、R1b-11b、R1c-10c和R1d-10d分别独立选自氢、C1-6烷基、C3-12支链烷基、C3-8环烷基、C1-6取代烷基、C3-8取代环烷基、芳基、取代芳基、芳基烷基、C1-6杂原子烷基、取代的C1-6杂原子烷基、C1-6烷氧基、苯氧基和C1-6杂原子烷氧基;a、b、c、d1-d6、e1-e6、f1-f6、g1-g6、h1-h6、i1-i6、j1-j6、k1-k6、l1-l6、m1-m6分别独立为零或正整数。