medchem

Apply Lipinski, Veber, CNS, leadlike, PAINS filters to prioritize molecular libraries.

16|7|Updated Nov 20, 2025
One-click install
npx skills add https://github.com/jackspace/ClaudeSkillz --skill medchem
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: medchem
Source: https://github.com/jackspace/ClaudeSkillz/tree/main/skills/scientific-pkg-medchem
Command: npx skills add https://github.com/jackspace/ClaudeSkillz --skill medchem

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps chemists apply drug-likeness rules, PAINS filters, and structure-based alerts to prune libraries and prioritize compounds for screening.

Core Features & Use Cases

  • Drug-likeness rules: Ro5, Veber, CNS, leadlike, etc.
  • Structural alerts & PAINS: Detect problematic patterns.
  • Complexity metrics & constraints: Calculate and filter by molecular properties.
  • Workflows: Batch filtering, library triage, and catalog lookups.

Quick Start

Run a prebuilt filtering script to screen a compound library and export results.

Frequently Asked Questions about medchem

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

FAQPage Schema
How do I filter a compound library for drug-likeness?

Drug-likeness filtering applies rule-based checks like Lipinski's Rule of Five, Veber, CNS, and leadlike criteria to identify compounds meeting pharmacological standards. This Skill automates batch screening of molecular libraries to prioritize candidates with favorable absorption, distribution, and synthetic feasibility for lead optimization.

What are PAINS filters and structural alerts in medicinal chemistry?

PAINS (Pan-Assay Interference Compounds) filters and structural alerts detect problematic molecular patterns that cause false positives in screening or lead to poor drug properties. This Skill identifies these patterns automatically to remove liability compounds before costly experimental validation.

Can I use complexity metrics to prioritize compounds during library triage?

Yes. This Skill calculates molecular complexity metrics and constraint-based properties, enabling you to rank and filter candidates by synthetic accessibility, structural diversity, and complexity thresholds alongside drug-likeness rules for efficient lead optimization workflows.

How do I batch-screen a large compound library against multiple filtering rules?

This Skill executes high-throughput batch filtering across rule sets including Ro5, Veber, CNS, leadlike, PAINS, and structural alerts in a single pass, producing per-molecule rule results and filtered candidate sets for downstream analysis and export.

What's the difference between drug-likeness rules and structural alerts?

Drug-likeness rules (Lipinski, Veber, CNS) predict oral bioavailability through property thresholds; structural alerts and PAINS detect specific reactive or problematic substructures that compromise safety or assay reliability. Both are complementary filters applied here to maximize candidate quality.