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Ni-Catalyzed Electrochemical Decarboxylative C–C Couplings in Batch and Continuous Flow

The formation of Csp3–Csp2 bonds is a powerful means of synthesizing high-value chemicals. Nickel catalysis has offered numerous avenues to Csp3–Csp2 bond assembly via cross coupling of Csp3 electrophiles, but…


A Scalable Membrane Pervaporation Approach for Continuous Flow Olefin Metathesis

The translation of olefin metathesis reactions from the laboratory to process scale has, historically, been challenging with traditional batch techniques due to mass-transport limitations that negatively influence the efficiency of…


Continuous Process for Preparing the Difluoromethylating Reagent [(DMPU)2Zn(CF2H)2] and Improved Synthesis of the ICHF2 Precursor

Complex [(DMPU)2Zn(CF2H)2] 1 is a crystalline organometallic reagent with utility in various catalytic difluoromethylation reactions under mild conditions. Unfortunately, this reagent isn’t commercially available, and the procedure for the preparation…


Seeking for Selectivity and Efficiency: New Approaches in the Synthesis of Raltegravir

This article shares our process for developing an improved API synthesis of raltegravir. Through this process, the team isolated a new process intermediate and develop conditions to solve the selectivity…


Scalable On-Demand Production of Purified Diazomethane Suitable for Sensitive Catalytic Reactions

In this article, we discuss how our team at Snapdragon Chemistry, in collaboration with Qpex Biopharma, Inc., designed and built a convenient development-scale reactor (0.44 mol/h) to prepare diazomethane from…


Axial Chirality in the Sotorasib Drug Substance, Part 2

Leveraging a High-Temperature Thermal Racemization to Recycle the Classical Resolution Waste Stream In part one of this two-part series, “Development of a Classical Resolution to Prepare an Atropisomerically Pure Sotorasib…


Implementing Continuous Manufacturing for the Final Methylation Step in the AMG 397 Process to Deliver Key Quality Attributes

In this article, we describe our work with Amgen on the process development efforts to improve the final methylation step in the AMG 397 drug substance process, culminating in the…


Dimethyl Fumarate: Heterogeneous Catalysis for the Development of an Innovative Flow Synthesis

In our recent article, our team in Milan explains how they developed an improved synthesis of the active pharmaceutical ingredient (API) dimethyl fumarate. Previously, commercial production strategies of dimethyl fumarate…


A Continuous Flow Process for LSN647712 via Double Organometallic Additions to Dimethylcarbamyl Chloride

The ketone intermediate, LSN647712, is a key synthetic intermediate for Eli Lilly’s drug substance lasmiditan during its manufacturing process. In this article, we explain how our team at Snapdragon Chemistry…


Maximizing the Value of Data in Process Development

In a recent article in Chemistry Today, Snapdragon Chemistry’s David Ford discusses how AI and data science may fundamentally change how we approach process development and early deliveries of active…