<form action="#" autocomplete="off" @submit.prevent="guardarInteres" id="form_modal_interes">
    <div class="modal fade" id="modal_interes" tabindex="-1" role="dialog" aria-hidden="true">
         <div class="modal-dialog modal-lg" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title">Interes</h5>
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                        <span aria-hidden="true">&times;</span>
                    </button>
                </div>
                <div class="modal-body">
				   <div class="form-group form-group-default">
                       <label for="descripcioninte">Descripcion:</label>
                       <input type="text" placeholder="--" id="descripcioninte" class="form-control">
                   </div>                
                 </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-secondary  btn-sm" data-dismiss="modal">Cerrar</button>
                    <button type="submit" class="btn btn-primary  btn-sm">Guardar</button>
                </div>
            </div>
        </div>
    </div>
</form>