【结 构 式】 |
【分子编号】60030 【品名】trisodium 2-[4,10-bis(2-oxido-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-1-yl]acetate 【CA登记号】 |
【 分 子 式 】C14H23N4Na3O6 【 分 子 量 】412.329284 【元素组成】C 40.78% H 5.62% N 13.59% Na 16.73% O 23.28% |
合成路线1
该中间体在本合成路线中的序号:(X)The macrocyclic tetraamine (I) was protected as the triaminomethane derivative (VIII) by treatment with either triethyl orthoformate (4) or with dimethylformamide dimethylacetal (5). Alkylation of (VIII) with bromoacetic acid gave rise to the N-formyl N',N'',N'''-tris(carboxymethyl) compound (IX). After basic hydrolysis of the formamide function of (IX), the resultant N-deprotected amine (X) was condensed with epoxide (II) to yield (XI). Further complexation with GdCl3 and ketal group hydrolysis led to the target compound
【1】 Murru, M.; Ripa, G.; Scala, A.; Viscardi, C.F.; Ausonio, M.; Scotti, C.; Cossuta, P. (Bracco SpA; Dibra SpA); A process for the preparation of macrocyclic chelants and the chelates thereof with paramagnetic metal ions. WO 9856775 . |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(A) | 23660 | 2-Bromoacetic acid | 79-08-3 | C2H3BrO2 | 详情 | 详情 |
(I) | 14855 | 1,4,7,10-tetraazacyclododecane; Cyclen | 294-90-6 | C8H20N4 | 详情 | 详情 |
(II) | 60022 | 4,4-dimethyl-3,5,8-trioxabicyclo[5.1.0]octane | C7H12O3 | 详情 | 详情 | |
(VIII) | 60028 | octahydro-5H-2a,4a,7,9a-tetraazacycloocta[cd]pentalene | C9H18N4 | 详情 | 详情 | |
(IX) | 60029 | 2-[4-formyl-7,10-bis(2-hydroxy-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-1-yl]acetic acid | C15H26N4O7 | 详情 | 详情 | |
(X) | 60030 | trisodium 2-[4,10-bis(2-oxido-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-1-yl]acetate | C14H23N4Na3O6 | 详情 | 详情 | |
(XI) | 60031 | trisodium 2-[4-[(5R,6S)-6-hydroxy-2,2-dimethyl-1,3-dioxepan-5-yl]-7,10-bis(2-oxido-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-1-yl]acetate | C21H35N4Na3O9 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(X)A different synthesis started from the previously reported tetraaza cyclopentaacenaphthylene (XV). Treatment of (XV) with a solution of piperazine at pH 6 gave rise to the bicyclic lactam (XVI). Alkylation of (XVI) with bromoacetic acid, followed by basic lactam hydrolysis furnished the tris(carboxymethyl) derivative (X), which was processed as in Scheme 3.
【1】 Argese, M.; Ripa, G. (Bracco SpA; Dibra SpA); 1,4,7,10-Tetraazabicyclo[8.2.2]tetradecan-2-one, a process for the preparation thereof and the use thereof for the preparation of tetraazamacrocycles. EP 0998476; JP 2002511884; WO 9905145 . |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(A) | 23660 | 2-Bromoacetic acid | 79-08-3 | C2H3BrO2 | 详情 | 详情 |
(X) | 60030 | trisodium 2-[4,10-bis(2-oxido-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-1-yl]acetate | C14H23N4Na3O6 | 详情 | 详情 | |
(XV) | 60034 | 1,4,7,10-tetraazatricyclo[8.2.2.2~4,7~]hexadecane | C12H24N4 | 详情 | 详情 | |
(XVI) | 60035 | 1,4,7,10-tetraazabicyclo[8.2.2]tetradecan-11-one | C10H20N4O | 详情 | 详情 | |
(XVII) | 60036 | 2-[7-(2-hydroxy-2-oxoethyl)-11-oxo-1,4,7,10-tetraazabicyclo[8.2.2]tetradec-4-yl]acetic acid | C14H24N4O5 | 详情 | 详情 |