simplerway.ts

// Extracts only non nested values
type ExtractValue<T extends {[key:string]: any}> = T extends {[key:string]: any} ? T[keyof T] : T;
// Recusively extracts values
type ExtractValues<T extends {[key:string]: any}> = T extends {[key:string]: any} ? ExtractValue<T[keyof T]> : never;

type ValuesOfComplexType = ExtractValues<ComplexType>; 
// or
type ValuesOfComplexType = ExtractValues<typeof ComplexConstants>;
// assings the values
// "any value 1" | "any value 2" | "any value 3" | "any value 4" ...