Design, synthesis, and biological evaluation of novel pyrrolo[1,2-a]pyrazine derivatives

Jinwoo Kim, Mikyung Park, Jiwon Choi, Dileep Kumar Singh, Ho Jeong Kwon, Seong Hwan Kim, Ikyon Kim

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


A pyrrolo[1,2-a]pyrazine-based chemical territory was expanded via construction of new chemical library with distinctive substitution patterns, which was made possible by regiodivergent electrophilic acylation followed by aldol condensation. Biological screening of the compounds in this class revealed that the viability of human lymphoma U937 cells was strongly inhibited by 6b with a methoxy group at the o-position of the aromatic ring, but not by compounds 6t-w bearing a halogen at the o-position. Furthermore, 6x having a 2,4-dimethoxyphenyl group inhibited the survival of U937 cells more potently than 6b. In contrast, 6y possessing a 2,5-dimethoxyphenyl moiety did not show effective inhibition, implying the importance of orientation of the substituent(s) around the benzene ring. The anticancer action of 6x with safe therapeutic window could be associated with the FTase-p38 signaling axis.

Original languageEnglish
Pages (from-to)1350-1356
Number of pages7
JournalBioorganic and Medicinal Chemistry Letters
Issue number11
Publication statusPublished - 2019 Jun 1

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Clinical Biochemistry
  • Organic Chemistry


Dive into the research topics of 'Design, synthesis, and biological evaluation of novel pyrrolo[1,2-a]pyrazine derivatives'. Together they form a unique fingerprint.

Cite this