SYNTHESIS OF 5-ALKENYLATED D4T ANALOGUES VIA THE Pd-CATALYZED CROSS-COUPLING REACTION
摘要:
The target compounds 5-[N-(6-amino-hexyl)-acrylamide]-2 ' ,3 ' -didehydro-2 ' ,3 ' -dideoxy-uridine (12) and 5-{N-[5-(methoxycarbonyl)-pentyl]acrylamide}-2 ' ,3 ' -didehydro-2',3 ' -dideoxy-uridine (15) were prepared by the palladium acetate-triphenylphosphine-catalyzed reaction of the 5 ' -O-acetyl-5-iodo-d4T analogue (3). These compounds 12 and 15 can be used to prepare nucleotide probes carrying fluorescent labels and were nevertheless screened for their anti-HIV activity. The biological data demonstrated that none of them were active against HIV-1.
synthesized as a mimetic of the natural musseladhesiveprotein (MAP). The obtained copolymer in a phosphate buffer solution (pH = 8.0) formed a hydrogel within 2 h under air, whereas gelation did not proceed under argon atmosphere. We confirmed that the cross‐linking reaction of the synthesized MAP mimetic copolymer was triggered by aerobic oxidation of catechol moieties to form an adhesive hydrogel. Two