专利号:US-5112972-A 优先权日:1989-06-02 标 题 :Synthesis of chroman derivatives 发明人:GERICKE ROLF; BAUMGARTH MANFRED; LUES INGEBORG; BERGMANN ROLF; PEYER DE 权利人:MERCK PATENT GMBH 摘要:The invention relates to new chroman derivatives of the formula I in which R1 is A, R2 and R8 are each H or A, R1 and R2 together are also alkylene with 3-6 C atoms, R3 is OH, OA or OAc, R4 is H, R3 and R4 together are also a bond, R5 is Ar or CnH2n-R9, R9 is alkenyl or alkynyl with 2-4 C atoms in each case, OH, OA, CHO, CO-A, CS-A, COOH, COOA, COO-alkyl-Ar, CS-OA, NO2, NH2, NHA, NA2, CN, F, Cl, Br, I, CF3, SA, SO-A, SO2-A or Ar, Ar is a phenyl group which is unsubstituted or substituted once or twice by R10, R6, R7 and R10 are each H, A, HO, AO, CHO, ACO, CF3CO, ACS, HOOC, AOOC, AO-CS, ACOO, A-CS-O, hydroxy-alkyl, mercapto-alkyl, NO2, NH2, NHA, NA2, CN, F, Cl, Br, I, CF3, AS, ASO, ASO2, AO-SO, AO-SO2, AcNH, AO-CO-NH, H2NSO, HANSO, A2NSO, H2NSO2, HANSO2, A2NSO2, H2NCO, HANCO, A2NCO, H2NCS, HANCS, A2NCS, ASONH, ASO2NH, AOSONH, AOSO2NH, ACO-alkyl, nitro-alkyl, cyano-alkyl, A-C(=NOH), A-C(=NNH2), H2PO3 or A2PO3, n is 1, 2 or 3, A is alkyl with 1-6 C atoms, -alkyl is alkylene with 1-6 C atoms and AC is alkanoyl with 1-8 C atoms or aroyl with 7-11 C atoms, and the salts thereof which display effects on the cardiovascular system and can be used for the treatment or prophylaxis of heart failure, angina pectoris, high blood pressure, incontinence and alopecia.
参考标题:Synthesis Of Cinnolines Via Rh(Iii)-Catalysed Dehydrogenative C-H/n-H Functionalization: Aggregation Induced Emission And Cell Imaging 作者:Sivakalai Mayakrishnan,Yuvaraj Arun,Chandrasekar Balachandran,Nobuhiko Emi,Doraiswamy Muralidharan,Paramasivan Thirumalai Perumal 摘要:Rhodium Catalysed Dehydrogenative C-H/n-H Functionalization Was Developed To Construct Phthalazino[2,3-A]-/indazolo[1,2-A]Cinnolines By Reacting N-Phenyl Phthalazine/indazole With Alkynes. The Synthesized Compounds Exhibit Prominent Fluorescence Properties In Solid And Aggregation States. Their Application In Cell Imaging Was Investigated Using Various Cancer Cell Lines.
合成参考文献
摘要:Li, J. J., Science of Synthesis: Knowledge Updates, (2025) 2.