Chelating ligands functionalized for facile attachment to biomolecules. A convenient route to 4-isothiocyanatobenzyl derivatives of diethylenetriaminepentaacetic acid and ethylenediaminetetraacetic acid
METHODS AND PHARMACEUTICAL COMPOSITIONS FOR DECORPORATION OF RADIOACTIVE COMPOUNDS
申请人:Jay Michael
公开号:US20090124692A1
公开(公告)日:2009-05-14
A composition for removing a radioactive element or compound such as systemic transuranic compounds, from mammals comprises a pharmaceutical carrier and a decorporation agent comprising ester and amide derivatives of DTPA. A method of treating a mammal to remove systemic compounds utilizing the DTPA derivatives is also disclosed.
Compounds of the Formula (I), (II) and (III) wherein Ar is for example phenylene, biphenylene or naphthylene, all of which are unsubstituted or substituted by C
1
-C
4
-alkyl, C
2
-C
4
-alkenyl, CN, OR
11
, SR
11
, CH2OR
11
, COOR
12
, CONR
12
R
13
or halogen; R
1
, R
2
, R
7
and R
8
independently of one another other are hydrogen or C
1
-C
6
-alkyl; R
3
and R
5
together and R
4
and R
6
together form a C
2
-C
6
-alkylene bridge which is unsubstituted or substituted by one or more C
1
-C
4
-alkyl; R
11
is hydrogen or C
1
-C
6
-alkyl; R
12
and R
13
independently of one another for example are hydrogen, phenyl, C
1
-C
18
-alkyl, C
1
-C
18
-alkyl which is interrupted by one or more O; n is 1-10; X is O, S or NR
10
; A and A
1
are suitable linking groups; are suitable as photolatent bases.
Compounds of the Formula (I), (II) and (III) wherein Ar is for example phenylene, biphenyleneor naphthylene, all of which are unsubstituted or substituted by C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, CH 2OR11, COOR12, CONR12R13 or halogen; R1, R2, R7 and R8 independently of one another other are hydrogen or C1-C6-alkyl; R3 and R5 together and R4 and R6 together form a C2-C6-alkylene bridge which is unsubstituted or substituted by one ore more C1-C4-alkyl; R11 is hydrogen or C1-C6-alkyl; R12 and R13 independently of one another for example are hydrogen, phenyl, C1-C18-alkyl, C1-C18-alkyl which is interrupted by one or more O; n is 1-10; X is O, S or NR10; A and A1 are suitable linking groups; are suitable as photolatent bases.
Aminopolycarboxylic esters react with C-60 under photolysis to produce fullerene multicarboxylates. Irradiation of tetramethyl ethylenediaminetetraacetate (EDTA) with C-60 yields the EDTA-containing fullerene monoadduct C-60(MeOOCCH)(2)NCH2CH2N(CH2COOMe)(2). In addition, several other C-60 monoadducts are also isolated and characterized, including compounds due to EDTA fragmentation. Similar results are observed with pentamethyldimethylenetriaminepentaaceta (DTPA). When partially methylated nitrilotriacetic acid is irradiated with C-60, decarboxylation occurs and organo dihydrofullerene derivatives such as C-60(H)(CH2N(CH2COOMe)(2)) are formed. Radical mechanisms are proposed for both types of photoreactions. The fullerene derivatives are characterized by their spectroscopic data. Photoreactions of C-60 with other analogous molecules also support the conclusions.
KEANA, JOHN F. W.;MANN, JEFFRY S., J. ORG. CHEM., 55,(1990) N, C. 2868-2872