Regex negate in Visual Studios search find / replace

I'm writing a find and replace for Visual Studios and I'm trying to switch all of our public variables to have get/sets.

Regex: ^public ((?!({))(?!=).)*;


      //MATCHES CORRECTLY
public string Country;
public string EmailAddress;
public string FirstName;
public string LastName;
public string PhoneNumber;
public string PostalCode;
public string State;
public List<Object> Example;

          //MATCHES BUT SHOULDNT
public event GetUserListCompletedEventHandler GetUserListCompleted;
public delegate void GetUserListCompletedEventHandler(object sender, GetUserListCompletedEventArgs e);

          //DOES NOT MATCH CORRECTLY
throw new Exception("In order to get the public date for blah blah blah");
public List<Order> orderDetails = new List<Order>();        
public string CustomerName { get; set; }
public string BillingAddress1 { get; set; }
public string BillingAddress2 { get; set; }

I've been able to get the event/delegate stuff to be ignored in regex, but in Visual Studios the regex parser is barfing when I try to use that code

^public ((?!({|event|delegate))(?!=).)*;

However, this does not work in VS 2019, despite the use of | being valid according to their own document.

https://docs.microsoft.com/en-us/visualstudio/ide/using-regular-expressions-in-visual-studio?view=vs-2019

The second issue is the output I'm doing is $0 { get ; set; }

public string Country; { get; set; }

So then I have to do a second find/replace to change that to remove the ;, because I cannot figure how to group the part before the semicolon, while not getting matches for the negative matches.

So I have two issues

1) How can I get the event/delegates to be ignored using regex in VS

2) How can I get the group for the first section to output, so I ignore the ; in the replace.

Any help or direction is very much appreciated.