Combinatorial Chemistry

---
name: combinatorial_chemistry
description: "Combinatorial Chemistry Library Design - Design combinatorial library: validate core SMILES, generate variants, compute properties, and predict ADMET for library. Use this skill for combinatorial chemistry tasks involving is valid smiles calculate mol basic info calculate mol drug chemistry pred molecule admet. Combines 4 tools from 2 SCP server(s)."
---

# Combinatorial Chemistry Library Design

**Discipline**: Combinatorial Chemistry | **Tools Used**: 4 | **Servers**: 2

## Description

Design combinatorial library: validate core SMILES, generate variants, compute properties, and predict ADMET for library.

## Tools Used

- **`is_valid_smiles`** from `server-2` (streamable-http) - `https://scp.intern-ai.org.cn/api/v1/mcp/2/DrugSDA-Tool`
- **`calculate_mol_basic_info`** from `server-2` (streamable-http) - `https://scp.intern-ai.org.cn/api/v1/mcp/2/DrugSDA-Tool`
- **`calculate_mol_drug_chemistry`** from `server-2` (streamable-http) - `https://scp.intern-ai.org.cn/api/v1/mcp/2/DrugSDA-Tool`
- **`pred_molecule_admet`** from `server-3` (streamable-http) - `https://scp.intern-ai.org.cn/api/v1/mcp/3/DrugSDA-Model`

## Workflow

1. Validate all SMILES
2. Calculate properties for library
3. Evaluate drug-likeness
4. Predict ADMET for top candidates

## Test Case

### Input
```json
{
    "core_smiles": "c1ccc(N)cc1",
    "variants": [
        "c1ccc(NC(=O)C)cc1",
        "c1ccc(NC(=O)CC)cc1"
    ]
}
```

### Expected Steps
1. Validate all SMILES
2. Calculate properties for library
3. Evaluate drug-likeness
4. Predict ADMET for top candidates

## Usage Example

> **Note:** Replace `<YOUR_SCP_HUB_API_KEY>` with your own SCP Hub API Key. You can obtain one from the [SCP Platform](https://scphub.intern-ai.org.cn).

```python
import asyncio
import json
from mcp import ClientSession
from mcp.client.streamable_http import streamablehttp_client
from mcp.client.sse import sse_client

SERVERS = {
    "server-2": "https://scp.intern-ai.org.cn/api/v1/mcp/2/DrugSDA-Tool",
    "server-3": "https://scp.intern-ai.org.cn/api/v1/mcp/3/DrugSDA-Model"
}

async def connect(url, transport_type):
    transport = streamablehttp_client(url=url, headers={"SCP-HUB-API-KEY": "<YOUR_SCP_HUB_API_KEY>"})
    read, write, _ = await transport.__aenter__()
    ctx = ClientSession(read, write)
    session = await ctx.__aenter__()
    await session.initialize()
    return session, ctx, transport

def parse(result):
    try:
        if hasattr(result, 'content') and result.content:
            c = result.content[0]
            if hasattr(c, 'text'):
                try: return json.loads(c.text)
                except: return c.text
        return str(result)
    except: return str(result)

async def main():
    # Connect to required servers
    sessions = {}
    sessions["server-2"], _, _ = await connect("https://scp.intern-ai.org.cn/api/v1/mcp/2/DrugSDA-Tool", "streamable-http")
    sessions["server-3"], _, _ = await connect("https://scp.intern-ai.org.cn/api/v1/mcp/3/DrugSDA-Model", "streamable-http")

    # Execute workflow steps
    # Step 1: Validate all SMILES
    result_1 = await sessions["server-2"].call_tool("is_valid_smiles", arguments={})
    data_1 = parse(result_1)
    print(f"Step 1 result: {json.dumps(data_1, indent=2, ensure_ascii=False)[:500]}")

    # Step 2: Calculate properties for library
    result_2 = await sessions["server-2"].call_tool("calculate_mol_basic_info", arguments={})
    data_2 = parse(result_2)
    print(f"Step 2 result: {json.dumps(data_2, indent=2, ensure_ascii=False)[:500]}")

    # Step 3: Evaluate drug-likeness
    result_3 = await sessions["server-2"].call_tool("calculate_mol_drug_chemistry", arguments={})
    data_3 = parse(result_3)
    print(f"Step 3 result: {json.dumps(data_3, indent=2, ensure_ascii=False)[:500]}")

    # Step 4: Predict ADMET for top candidates
    result_4 = await sessions["server-3"].call_tool("pred_molecule_admet", arguments={})
    data_4 = parse(result_4)
    print(f"Step 4 result: {json.dumps(data_4, indent=2, ensure_ascii=False)[:500]}")

    # Cleanup
    print("Workflow complete!")

if __name__ == "__main__":
    asyncio.run(main())
```