申请人:Academia Sinica, a Taiwan research institution
公开号:US20030111956A1
公开(公告)日:2003-06-19
A method of preparing a compound of formula I is described.
1
In this compound, each of R
1
-R
6
is, independently,
2
in which Y is O, S, NH, or C(R
7
)=C(R
8
). Each of R
7
-R
11
is, independently, H, substituted or unsubstituted C
1-6
alkyl, substituted or unsubstituted C
2-6
alkenyl, substituted or unsubstituted C
2-6
alkynyl, substituted or unsubstituted C
6-20
aryl, or substituted or unsubstituted C
4-20
heteroaryl. Alternatively, each of R
7
-R
11
is OH, C
1-6
alkoxy, or N(R
12
)(R
13
), in which each of R
12
and R
13
is, independently, H, substituted or unsubstituted C
1-6
alkyl, substituted or unsubstituted C
2-6
alkenyl, substituted or unsubstituted C
2-6
alkynyl, or substituted or unsubstituted C
6-20
aryl. Each of R
7
-R
11
can also be NO
2
, CN, or CO
2
R
14
, in which R
14
is H or C
1-6
alkyl.
描述了一种制备式I化合物的方法。在该化合物中,R1-R6各自独立地为2,其中Y为O、S、NH或C(R7)=C(R8)。R7-R11各自独立地为H、取代或未取代的C1-6烷基、取代或未取代的C2-6烯基、取代或未取代的C2-6炔基、取代或未取代的C6-20芳基或取代或未取代的C4-20杂芳基。或者,R7-R11各自独立地为OH、C1-6烷氧基或N(R12)(R13),其中R12和R13各自独立地为H、取代或未取代的C1-6烷基、取代或未取代的C2-6烯基、取代或未取代的C2-6炔基或取代或未取代的C6-20芳基。R7-R11中的每一个也可以是NO2、CN或CO2R14,其中R14为H或C1-6烷基。