I have issue with posting an API header to Bright Pattern out of Developer Console using a workspace. below is the Code and when I send it I get an "Execute Anonymous Error on line 6 column:19 Unexpected token '('". **It looks like there is an Problem with the opening bracket after the request.setHeader. However this looks ok.** 

Http http = new Http();
HttpRequest request = new HttpRequest();
request.setEndpoint('https://sprout.brightpattern.com/clientweb/api/v1/chats?tenantUrl=sprout.brightpattern.com&timestamp=1538601898');
request.setMethod('POST');
// Set Header for the Authorization 
request.setHeader('Content-Type', 'application/json;charset=UTF-8';
  'Authorization: MOBILE-API-140-327-PLAIN'+ appId=9aeb0234a9cc4723a0ef353d65ae0b77 + clientId=WebChat);
// Set the body as a JSON object
request.setBody('{"LeadId":"00QM000000FL93tMAD"}');
// Parse the JSON response
HttpResponse response = http.send(request);
if (response.getStatusCode() != 201) {
    System.debug('The status code returned was not expected: ' +
        response.getStatusCode() + ' ' + response.getStatus());
} else {
    System.debug(response.getBody());
}