Analogs of discodermolide and dictyostatin-1, intermediates therefor and methods of synthesis thereof
申请人:——
公开号:US20040186165A1
公开(公告)日:2004-09-23
A compound of the following structure:
1
wherein R
1
is H, an alkyl group, an aryl group, an alkenyl group, an alkynyl group, or a halogen atom;
R
2
is H, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiR
a
R
b
R
c
, CH
2
OR
d
, or COR
e
;
R
a
, R
b
and R
c
are independently an alkyl group or an aryl group;
R
d
is an alkyl group, an aryl group, an alkoxylalkyl group, —R
i
SiR
a
R
b
R
c
or a benzyl group, wherein R
i
is an alkylene group;
R
e
is an alkyl group, an allyl group, a benzyl group, an aryl group, an alkoxy group, or —NR
g
R
h
, wherein R
g
and R
h
are independently H, an alkyl group or an aryl group;
R
3
is (CH
2
)
n
where n is and integer in the range of 0 to 5, —CH
2
CH(CH
3
)—, —CH═CH—, —CH═C(CH
3
)—, or —C≡C—;
R
4
is (CH
2
)
p
where p is an integer in the range of 4 to 12, —(CHR
k1
)
y1
(CHR
k2
)
y2
(CHR
k3
)
y3
(CHR
k4
)
y4
(CHR
k5
)
y5
C(R
s1
)═C(R
s2
)C(R
s3
)═C(R
s4
)—, —(CHR
k1
)
y1
(CHR
k2
)
y2
(CHR
k3
)
y3
(CHR
k4
)
y4
(CHR
k5
)
y5
CH(R
s1
)CH(R
s2
)C(R
s3
)═C(R
s4
)—, —(CHR
k1
)
y1
(CHR
k2
)
y2
(CHR
k3
)
y3
(CHR
k4
)
y4
(CHR
k5
)
y5
C(R
s1
)═C(R
s2
)CH(R
s3
)CH(R
s4
)—, —(CHR
k1
)
y1
(CHR
k2
)
y2
(CHR
k3
)
y3
(CHR
k4
)
y4
(CHR
k5
)
y5
CH(R
s1
)CH(R
s2
)CH(R
s3
)CH(R
s4
)—, wherein y1 and y2 are 1 and y3, y4 and y5 are independently 0 or 1, R
k1
, R
k2
, R
k3
, R
k4
and R
k5
are independently H, CH
3
, or OR
2a
, and R
s1
, R
s2
, R
s3
, and R
s4
are independently H or CH
3
, wherein R
2a
is H, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiR
a
R
b
R
c
, CH
2
OR
d
, or COR
e
; and
R
5
is H or OR
2b
, wherein R
2b
is H, an alkyl group, an aryl group, an aryl group, a benzyl group, a trityl group, —SiR
a
R
b
R
c
, CH
2
OR
d
, or COR
e
; provided that the compound is not dictyostatin 1.
以下结构的化合物:其中R1为H、烷基、芳基、烯基、炔基或卤素原子;R2为H、烷基、芳基、苄基、三苯甲基、—SiRaRbRc、CH2ORd或CORe;Ra、Rb和Rc独立地为烷基或芳基;Rd为烷基、芳基、烷氧基烷基、—RiSiRaRbRc或苄基,其中Ri为烷基;Re为烷基、烯丙基、苄基、芳基、烷氧基或—NRgRh,其中Rg和Rh独立地为H、烷基或芳基;R3为(CH2)n,其中n为0至5范围内的整数,—CH2CH(CH3)—、—CH═CH—、—CH═C(CH3)—或—C≡C—;R4为(CH2)p,其中p为4至12范围内的整数,—(CHRk1)y1(CHRk2)y2(CHRk3)y3(CHRk4)y4(CHRk5)y5C(Rs1)═C(Rs2)C(Rs3)═C(Rs4)—、—(CHRk1)y1(CHRk2)y2(CHRk3)y3(CHRk4)y4(CHRk5)y5CH(Rs1)CH(Rs2)C(Rs3)═C(Rs4)—、—(CHRk1)y1(CHRk2)y2(CHRk3)y3(CHRk4)y4(CHRk5)y5C(Rs1)═C(Rs2)CH(Rs3)CH(Rs4)—、—(CHRk1)y1(CHRk2)y2(CHRk3)y3(CHRk4)y4(CHRk5)y5CH(Rs1)CH(Rs2)CH(Rs3)CH(Rs4)—,其中y1和y2为1,y3、y4和y5独立地为0或1,Rk1、Rk2、Rk3、Rk4和Rk5独立地为H、CH3或OR2a,而Rs1、Rs2、Rs3和Rs4独立地为H或CH3,其中R2a为H、烷基、芳基、苄基、三苯甲基、—SiRaRbRc、CH2ORd或CORe;而R5为H或OR2b,其中R2b为H、烷基、芳基、苄基、三苯甲基、—SiRaRbRc、CH2ORd或CORe;但该化合物不是二叉鞘菌素1。