var nameList = new List() { "abc", "def" }.ToArray();
var sqlQuery = $"delete from MyTable where Name in ({string.Join(',', reminderList.Select(x => $"{{{Array.IndexOf(reminderList, x)}}}"))})";
// ReSharper disable once CoVariantArrayConversion
var count = await dbContext.Database.ExecuteSqlRawAsync(sqlQuery, nameList);