Yes. Use
https://shunyweb.info/convert.php
Dump your DS VC save using Saviine to have a filename (it's pretty long) for copy & pasting later.
Input your R4i save into that converter, pick R4 for Source format, pick RAW Format (auto detection) for Target format, hit Convert.
Copy the original filename of DS VC's save and paste on converted .sav.
Rename a file extension .sav to .save.
Then inject your save with Saviine.