PIPages
Labs

David Sarlah

Rice University, TX·Chemistry

Many medicines and crop-protection chemicals come from molecules made by living things, known as natural products. These molecules are often too complex to make or modify easily in the laboratory, so promising compounds can go unstudied.

Fields

Chemistry

Pharmacology

Topics

total synthesis

natural products

organic synthesis

Grants
2 known grants, through Jul 2029

What they work on

  1. Develop a stereoselective olefination, a double-bond-forming reaction that controls 3D shape, to efficiently build the strained [5.3.2] bicyclic ring system of the cripowellin alkaloids.
  2. Establish a labdane-to-clerodane skeletal rearrangement that moves several chemical groups across a two-ring decalin core, creating new synthetic routes between two classes of terpenoid natural products.
  3. Create a regiodivergent, transition metal-catalyzed cycloaddition that can be steered to form rings in different orientations, giving access to a large class of complex cyclophane-containing peptides.
  4. Synthesize isomalabaricane triterpenoids, nimbolide and perhydrobenz[e]indene-based terpenoids, building on stereodivergent access to all four stereoisomers of a rare 6/6/5 tricyclic terpenoid core.
  5. Test synthetic terpenoids and their analogues for anticancer and anti-infective activity with chemical biology collaborators, and identify their molecular targets, mechanisms of action and metabolites.

More about the research

Both projects tackle this supply problem. They design new chemical reactions and step-by-step routes (syntheses) that build complex natural products quickly and with control over their 3D shape. One project focuses on new building strategies for several molecule families. The other focuses on terpenoids, a large family of ring-rich natural products, and on testing them for biological activity.

Why it matters

Natural products have inspired more than 80% of all drugs and over 65% of anticancer drugs, but many cannot be studied because they are scarce and hard to make. Faster, more practical syntheses could supply these compounds and their analogues for testing as new cancer and infection treatments. They could also help manufacture high-value compounds used in medicinal chemistry and agriculture.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Enabling Strategies for Synthesis of Complex Natural Products

NSF · Aug 2026 – Jul 2029

Synthesis of Biologically Active Terpenoids

NIH · Feb 2023 – Jan 2027

Closest labs

Filippo Romiti

University of Texas at Dallas, TX·Chemistry·Early-career

Develop a catalytic chemoselective amide reduction combined with a Friedel–Crafts coupling, which joins two alkaloid units directly, and show its use in short syntheses of the bisindole alkaloids kopsoffine and pleiomutine.

Brian Stoltz

California Institute of Technology, CA·Chemistry

Develop new stereoselective reactions that produce densely substituted, enantioenriched building blocks for synthesizing complex molecules.

Myles Smith

University of Texas Southwestern Medical Center, TX·Chemistry

Synthesize quassinoids, anticancer terpenoids, using direction-switchable oxidative coupling of simple bisphenols, so that oxygen already on the aromatic rings encodes much of the target's oxidation pattern.

The school

Rice University: 24 labs on PI Pages, $278M a year on research, 267 research doctorates a year.

More about Rice University

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