Text
convern to curves (Ctrl+Q), and in Contour docker (Ctrl-F9) make
Inside contour.
Enable
Snap to objects option (Alt + Z) and draw auxiliary path with Free
Hand Tool (enough lines of the two nodes angles unifying text and
contour).
A
simple click with Instrument Smart Fill Tool make a separate object.
Remove
contour and path, break text on separate letter (Ctrl + K). Fill
sides and letters with Gradients (G).
vector file: side_txt.cdr
Sorry
my english is bad, if you will find errors tell me please, I shall
correct. Thanks.