I need to map TS classes array to object { [key: classNameWithFirstLetterLowercase]: classInstance }, can't make it strongly typed

Question

I have a function. It should accept class definitions and produce object with their names (first letter - lowercase) mapped to their instances. I want it to be strongly typed.

function createObject (...classes: any[]) {
    // something like
    return classes.reduce((acc, class) => {
        const name = class.name.charAt(0).toLowerCase() + class.name.slice(1);
        acc[name] = new class();
        return acc;
    });
}

So I want to use it like:

const { aClass, bClass, cClass } = createObject(AClass, BClass, CClass);

UPDATE

I'm trying to extract class name like this:

type GetName<T> = 'name' extends keyof T ? T['name'] : never;
type ClassName = GetName<AClass>;

But ClassName is never. Guess I'm missing something crucial.