routerlinkactive in dropdown main text

1<ul class="nav nav-tabs">
2  <li class="pull-right" [routerLinkActive]="['active']">
3    <a class="dropdown-toggle" data-toggle="dropdown"> More <span class="caret"></span></a>
4      <ul class="dropdown-menu">
5        <li><a [routerLink]="['/profile/link1']">Link 1</a></li>
6        <li><a [routerLink]="['/profile/link2']">Link 2</a></li>
7      </ul>
8  </li>
9  <li class="pull-right" [routerLinkActive]="['active']"><a [routerLink]="['/profile/feature1']">Feature1</a></li>
10  <li class="pull-right" [routerLinkActive]="['active']"><a [routerLink]="['/profile/feature2']">Feature2</a></li>
11</ul>
12