medchem

Filter compound libraries with medicinal chemistry rules, PAINS, and structural alerts.

33.0k|3.2k|Updated Oct 19, 2025
One-click install
npx skills add https://github.com/K-Dense-AI/scientific-agent-skills --skill medchem-k-dense-ai
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: medchem
Source: https://github.com/K-Dense-AI/scientific-agent-skills/tree/main/scientific-skills/medchem
Command: npx skills add https://github.com/K-Dense-AI/scientific-agent-skills --skill medchem-k-dense-ai

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Medicinal chemistry screening helps researchers triage large compound libraries by applying established drug-likeness rules, PAINS filters, and structural alerts to prioritize viable drug candidates.

Core Features & Use Cases

  • Apply RuleFilters to enforce Ro5, Veber, CNS, and lead-like criteria across libraries.
  • Run structural alerts via CommonAlertsFilters, NIBRFilters, and LillyDemeritsFilters to flag risky chemotypes.
  • Compute molecular complexity and apply constraint-based filters for rapid triage.
  • Use functional APIs and parallel processing to scale workflows from hundreds to millions of molecules.
  • Use cases include hit-to-lead screening, lead optimization, and CNS-focused libraries.

Quick Start

Provide a list of molecules and run RuleFilters with a chosen set of rules to obtain drug-like candidates.

Frequently Asked Questions about medchem

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I filter compound libraries using PAINS and structural alerts?▼

To filter compound libraries, apply medicinal chemistry rules, PAINS filters, and structural alerts to flag risky chemotypes and prioritize drug-like candidates. This triage process uses CommonAlertsFilters, NIBRFilters, and LillyDemeritsFilters to identify viable molecules.

What is the best way to apply drug-likeness rules for hit-to-lead optimization?▼

The best way to apply drug-likeness rules for hit-to-lead optimization is using modular RuleFilters to enforce Ro5, Veber, and lead-like criteria. This rapidly triages compound libraries to identify candidates that meet established physicochemical property thresholds.

Can I use medicinal chemistry filters for large-scale library screening?▼

Yes, you can use medicinal chemistry filters for large-scale library screening. The functional APIs support parallel processing, allowing workflows to scale from hundreds to millions of molecules efficiently while applying drug-likeness rules and structural alerts.

Does this support CNS-focused drug discovery workflows?▼

Yes, this supports CNS-focused drug discovery workflows. RuleFilters include specific CNS criteria to triage compound libraries for central nervous system drug discovery, applying targeted drug-likeness constraints alongside general medicinal chemistry rules.

How do structural alerts help identify problematic chemotypes?▼

Structural alerts identify problematic chemotypes by scanning compound libraries for known risky molecular patterns. Filters like NIBRFilters and LillyDemeritsFlags flag potentially toxic or reactive substructures, removing unsuitable candidates early in the screening process.