The phrase "required from" can be replaced with several synonyms depending on the context. For instance, if we are referring to the mandatory elements for a certain process or procedure, we can use terms like compulsory, necessary, or essential. On the other hand, if we're talking about the demand for someone's presence or participation in a specific activity, we can use words such as needed, requisite, or mandatory. Moreover, synonyms like prescribed and obligated can be used if the requirement emanates from an authoritative entity or legal obligation. Other synonyms for "required from" include mandatory, necessary, essential, compulsory, and needed. Therefore, depending on the context, varying synonyms can be used to convey the intended meaning more effectively and accurately.