| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | 9,15-dioxa-25,32,35,42-tetrazahexacyclo[21.10.10.03,8.016,21.026,31.036,41]tritetraconta-1(33),3,5,7,16,18,20,23(43),24,26,28,30,34,36,38,40-hexadecaene-2,22-dione | 1290610-56-8 | C37H32N4O4 | 596.685 |
| —— | 9,20-dioxa-30,37,40,47-tetrazahexacyclo[26.10.10.03,8.021,26.031,36.041,46]octatetraconta-1(38),3,5,7,21,23,25,28(48),29,31,33,35,39,41,43,45-hexadecaene-2,27-dione | 1290610-57-9 | C42H42N4O4 | 666.82 |
| —— | 7,16-bis[2-(octoxy)benzoyl]-5,14-dihydrodibenzo[b,i][1,4,8,11]tetraazacyclotetradecine | 1290610-55-7 | C48H56N4O4 | 752.997 |
| —— | 9,12,15,20,23,26-hexaoxa-36,43,46,53-tetrazaheptacyclo[32.10.10.216,19.03,8.027,32.037,42.047,52]hexapentaconta-1(44),3,5,7,16(56),17,19(55),27,29,31,34(54),35,37,39,41,45,47,49,51-nonadecaene-2,33-dione | 1290610-59-1 | C46H42N4O8 | 778.861 |
An investigation of the interactions of two novel and several known DBTAA–adenine conjugates with double-stranded DNA and RNA has revealed the DNA/RNA groove as the dominant binding site, which is in contrast to the majority of previously studied DBTAA analogues (DNA/RNA intercalators). Only DBTAA–propyladenine conjugates revealed the molecular recognition of AT-DNA by an ICD band pattern > 300 nm, whereas significant ICD bands did not appear for other ds-DNA/RNA. A structure–activity relation for the studied series of compounds showed that the essential structural features for the ICD recognition are a) the presence of DNA-binding appendages (adenine side chain and positively charged side chain) on both DBTAA side chains, and b) the presence of a short propyl linker, which does not support intramolecular aromatic stacking between DBTAA and adenine. The observed AT-DNA-ICD pattern differs from previously reported ss-DNA (poly dT) ICD recognition by a strong negative ICD band at 350 nm, which allows for the dynamic differentiation between ss-DNA (poly dT) and coupled ds-AT-DNA.