can anybody tell me if the metro runs directly from CDG to montparnasse?

"Results": [
    {
        "TypeName": "LOC",
        "Text": "CDG",
        "Start": 52,
        "End": 55
    },
    {
        "TypeName": "LOC",
        "Text": "montparnasse",
        "Start": 59,
        "End": 71
    }
]