(4R)-1-Methyl-4-propyl-D-proline is an intermediate in the synthesis of Lincomycin, which is a lincosamide antibiotic from the actinomycete Streptomyces lincolnensis.

(4R)-1-Methyl-4-propyl-L-proline Methyl Ester-[d3], is the labelled analogue of (4R)-1-Methyl-4-propyl-L-proline Methyl Ester, which is a derivative of proline. (4R)-1-Methyl-4-propyl-L-proline Methyl Ester is an intermediate in the production of biosynthetic antibiotics.