wrapping post_ thumbnail post_title and get_post_meta in href

So this is what I have so far:

<div class="bxslider-img">
<?php // Check if there's a Slide URL given and if so let's a link to it
if ( get_post_meta( get_the_id(), 'hpa_slideurl', true) != '' ) { ?>
<a href="<?php echo esc_url( get_post_meta( get_the_id(), 'hpa_slideurl', true) ); ?>">
<?php }

 // The Slide's Image
echo the_post_thumbnail('slider-img');
// Close off the Slide's Link if there is one
if ( get_post_meta( get_the_id(), 'hpa_slideurl', true) != '' ) { ?>
</a>
<?php } ?>

<div class="bxslider-text">
<?php
echo the_title();
echo get_post_meta( get_the_id(), 'hpa_slidedescription', true);
?>
</div>
</div>

What I would like to have but I get an error,
<div class=”bxslider-img”>

<?php // Check if there’s a Slide URL given and if so let’s a link to it
if ( get_post_meta( get_the_id(), ‘hpa_slideurl’, true) != ” ) { ?>
“>
<?php }

// The Slide’s Image
echo the_post_thumbnail(‘slider-img’);
<div class=”bxslider-text”>
echo the_title();
echo get_post_meta( get_the_id(), ‘hpa_slidedescription’, true);
</div>

// Close off the Slide’s Link if there is one
if ( get_post_meta( get_the_id(), ‘hpa_slideurl’, true) != ” ) { ?>

<?php } ?>

</div>