Results 211 to 220 of about 31,966 (258)

Synthesis of pyrrole urea and pyrrole carbonylurea derivatives

Tetrahedron, 2009
Abstract A series of urea and carbonylurea distamycin analogs whereby the linker has two NH groups for hydrogen bonding with base pairs of DNA were synthesized. The urea and carbonylurea derivatives are prepared from the in situ generation of pyrrole isocyanate (prepared from compound 3 ) and acyl isocyanate (compound 9 ), followed by the reaction ...
Meng-Chi Liu, Chi Wi Ong
openaire   +1 more source

Synthesis of pyrrole and substituted pyrroles (Review)

2017
Pyrrole is widely known as a biologically active scaffold which possesses a diverse nature of activities. The combination of different pharmacophores in a pyrrole ring system has led to the formation of more active compounds. Pyrrole containing analogs are considered as a potential source of biologically active compounds that contains a significant set
Tzankova D., Vladimirova S., Peikova L., Georgieva M.   +3 more
openaire   +1 more source

Pyrrole chemistry. XXVII. 2,3,4-Trisubstituted pyrroles and a second synthesis of porphobilinogen from pyrrole

Canadian Journal of Chemistry, 1984
Changes in some of the key intermediates and procedures used in our earlier total synthesis of porphobilinogen from pyrrole that improve the yield to 11% are reported. Ethyl pyrrole-3-acetate was formylated by the Vilsmeier–Haack method and then iodinated.
Kurt Faber, Hugh J. Anderson, Charles E. Loader, Annette S. Daley   +3 more
openaire   +1 more source

Pyrrole Pigments

Annual Review of Biochemistry, 1950
R, LEMBERG, J W, LEGGE
openaire   +2 more sources

Calix[4]pyrrole‐Crosslinked Porous Polymeric Networks for the Removal of Micropollutants from Water

Angewandte Chemie - International Edition, 2021
Mram Al-Yami, Xiaofan Ji, Jonathan Sessler   +2 more
exaly  

Pyrroles from azaindoles. Synthesis of porphobilinogen and related pyrroles

Journal of the American Chemical Society, 1969
B, Frydman, S, Reil, M E, Despuy, H, Rapoport   +3 more
openaire   +2 more sources

Bioactive pyrrole-based compounds with target selectivity

European Journal of Medicinal Chemistry, 2020
Giovanna Li Petri, Roberto Spatola, Ralph Holl   +2 more
exaly  

Pyrrole

2021
openaire   +1 more source

Pyrroles and Fused Pyrroles: Synthesis and Therapeutic Activities

Mini-Reviews in Organic Chemistry, 2013
Mosaad Mohamed, Samar Fathallah
openaire   +1 more source

Heteroheptacene-based acceptors with thieno[3,2-b]pyrrole yield high-performance polymer solar cells

National Science Review, 2022
Tao Liu, Yang Zou, Chuluo Yang
exaly