04-08-2016 дата публикации
Номер: US20160223559A1
Принадлежит:
Described herein are tetrazine derivatives and efficient synthetic methods of synthesis thereof using elimination-Heck cascade reaction. Provided herein is the synthesis of conjugated tetrazines from the tetrazine derivatives. Also provided herein are methods of use of the conjugated tetrazines as fluorogenic probes for live-cell imaging. 2. The method of claim 1 , wherein LG is an electron withdrawing group.3. The method of claim 1 , wherein:{'sub': 2', '2', '2', '2', '2', '2', '2, 'sup': +', '3A', '+', '3A', '+', '3B', '3C', '+', '3A', '3B', 'C', '+', '3A, 'LG is —N, —OR, —OSORF, a perfluoroalkylsulfonate, a tosylate, a mesylate, a halogen; —OH, —ONO, —OPO(OH), —ONO, —S(RR), —N(RRR), —OCOR, substituted or unsubstituted aryloxy or substituted or unsubstituted heteroaryloxy; and'}{'sup': 3A', '3B', '3C', '3B', '3C, 'sub': 3', '3', '3', '3', '2', '2', '2', '3', '4', '2', '2', '2', '2', '2', '2', '2', '3', '3', '3', '3', '2', '2', '2', '2, 'R, Rand Rare independently hydrogen, halogen, —CF, —CCl, —CBr, —CI, —OH, —NH, —COOH, —CONH, —NO, —SH, —SOH, —SOH, —SONH, —NHNH, —ONH, —NHC(O)NHNH, —NHC(O)NH, —NHSOH, —NHC(O)H, —NHC(O)—OH, —NHOH, —OCF, —OCCl, —OCBr, —OCI, —OCHF, —OCHC1, —OCHBr, —OCHI, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; Rand Rsubstituents bonded to the same nitrogen atom may optionally be joined to form a substituted or unsubstituted heterocycloalkyl or substituted or unsubstituted heteroaryl.'}4. The method of claim 1 , wherein the method further comprises a solvent.5. The method of claim 4 , wherein the solvent is an organic solvent.6. The method of claim 1 , wherein the method comprises an organic base.7. The method of claim 1 , wherein the method is conducted at a temperature of from about 25° C. to 200° C.8. The method of claim 1 , wherein the method is ...
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