I am Dr. Dirgha Raj Joshi, a pharmacist and medicinal chemist with a BS in Pharmacy (Pokhara University, Nepal), MS in Medicinal Chemistry (Wonkwang University, South Korea), and a PhD in Medicinal Chemistry (Yonsei University, South Korea).
My research focuses on
drug discovery, synthetic methodologies, and antiviral drug development, with 30+ publications and multiple patents. Currently, I serve as an Assistant Professor of Medicinal Chemistry at Karnali Academy of Health Sciences (KAHS), Nepal, and I welcome research collaborations.

Dirgha Raj Joshi with this certificate

"जुन देशका युवाले आफ्नै देशमा आफ्नो भविष्य देख्दैनन्, त्यो देशको भविष्य कहिल्यै उज्वल हुँदैन l "

My Research Work

Regioselective Synthesis of 1-Cyano-3-arylindolizines: Construction of Pyrroles via DDQ-Mediated Ring Closure of Cyclopropyl Pyridines

A modular approach to a wide range of 1-cyano-3-(hetero)arylindolizines through aldol-cyclopropanation-oxidative cycloisomerization is described where DDQ was utilized for the regioselective synthesis of the pyrrole units from cyclopropyl pyridines for the first time.

Synthesis of Poly-Functionalized Indolizines via [5+1] Annulative Access to Pyridines

Multi-functionalization of the pyridine motif of indolizine was achieved through [5+1] annulative construction of pyridine from 2-hydroxyacetophenone and pyrrole derivative in the presence of Cs2CO3.

Domino [4 + 2] Annulation Access to Quinone–Indolizine Hybrids: Anticancer N-Fused Polycycles

A highly efficient synthetic route to new quinone–indolizine hybrids was accomplished from quinones and N-substituted pyrrole-2-carboxaldehydes via a domino Michael addition-aldol condensation-aromatization sequence through which the central pyridine ring was constructed in atom-economical and environment-friendly manner

PUBLICATION IN NEWSPAPER