I need to use the angular 6 with salesforce visualforce . Is that possible

I am looking to create a trigger off of a custom object (ObjA - Looks up to Accounts and Opportunities) that will create a record in custom object (ObjB) based on fields from ObjA and some related fields from Accounts/Opportunities.
I receive errors that my related fields do not exist. Can anyone provide insight?
 

trigger OpptyHierarchy on Additional_Account__c (after insert) {
	List<Opportunity_Hierarchy__c> recordsToInsert = new List<Opportunity_Hierarchy__c>();
	for (Additional_Account__c l : Trigger.new) {
		if (l.IsInsert) {
			Opportunity_Hierarchy__c la = new Opportunity_Hierarchy__c();
			V.Account__r.Name = O.Account_Name__c;
			v.Name = o.Account__c;
			v.Account__r.Enterprise_Account__r.Name = o.Enterprise_Account__c;
			v.Account__r.Billing_Location__r.Name = o.Main_Account__c;
			v.Opportunity__c = o.Opportunity__c;

	
			recordsToInsert.add(la);
		}
	}
	insert recordsToInsert;
}