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Posts tagged with "Chemical News"

  • Chemical News

    Scaffold Popularity

    Here’s a paper that’s analyzing the popularity of different structural scaffolds in medicinal chemistry over time. The authors are using the ChEMBL database and looking for the core structures with the most work done on them, tracking changes over time (1998-2014). That’s a set of nearly 283,000 unique compounds to work with, but… Read More
  • Chemical News

    Chirality, From Chemical Supply Houses to Life as We Know It

    I wrote here a few years ago about the Mysterious Sparteine Shortage, and it’s a problem that hasn’t gone away. Sparteine, for those who collect neither alkaloids nor asymmetric organic chemistry routes, is a naturally occurring compound (found in a South American species of lupine, among other places), and it’s also an interestin… Read More
  • Chemical News

    Extraction and Salting-Out

    I really enjoyed this paper, because it goes into detail on a technique that organic bench chemists the world over have all used at some point: “salting out”. I’ll go into some background for the nonchemists for a few paragraphs and then return to the paper itself, which all working organic chemists should have a… Read More
  • Chemical News

    Hydrothermal Vents Weren’t Home?

    It’s probably not surprising, but you would be hard pressed to find an area that’s full of more intractable arguments than origin-of-life studies. There are so many theories, because it’s relatively easy to add new ones, and it’s difficult to impossible to put many of them to the real test. Meanwhile, the scientific stakes a… Read More
  • Analytical Chemistry

    How a Compound Dissolves – One Water Molecule At a Time

    Here’s another one of those nanoscale articles that gives me a bit of a shiver, because it shows pictures of something that I had assumed was beyond our ability to see. The authors, from the Ruhr University in Bochum, are looking at a simple organic molecule (an azobenzene, shown at right), adsorbed onto a solid… Read More
  • Analytical Chemistry

    Two Molecules, When You Were Expecting Just One

    Here’s a good short review on a subject that doesn’t come up too often in drug discovery, but can be a major headache when it does: atropisomerism. There are all sorts of structural isomers possible for organic compounds, and students in their second-year class have a joyful time learning them and keeping them straight. But… Read More
  • Chemical News

    Sixty-Three Years in Chemistry: An Interview with Donald Batesky

    So I wrote here about Donald Batesky, the 85-year-old synthetic organic chemist at the University of Rochester who recently published a paper in the Journal of Organic Chemistry. He contacted me afterwards, and I ended up talking to him for quite a while about his career, which has been long (clearly!) and varied. With his permission… Read More
  • Analytical Chemistry

    Stereochemical Mysteries, Solved

    Ask a chemist (I’ll do) about optical rotation, and you’ll get a confident answer about how right- and left-handed isomers of chiral compounds will rotate polarized light that shines through a solution of one of them. Ask one of us exactly how it does that, and in 99 cases out of a hundred, you’ll witness… Read More
  • Chemical Biology

    HAT Inhibitors: Interpret With Care

    There are quite a few histone deacetylase inhibitors out there, from research tools to FDA-approved drugs. Those inhibit the enzymes that remove the acetyl epigenetic markers from histone proteins – but what about inhibitors of the enzymes that put them on? Those are histone acetyltransferases (HATs), and they’ve naturally been the subj… Read More
  • Chemical News

    How Many of Those Compounds Are Crap?

    A reader sent along a note about this letter to Nature Medicine earlier in the year. It’s about drug repurposing, and more specifically about the Drug Repurposing Hub at the Broad Institute. This is a collection of nearly 5,000 compounds, curated and annotated with their histories and activities. It was not a straightforward task: . Read More
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