(+)-SHIN1 ((+)-RZ-2994) is an active (+) enantiomer of SHIN1[1].
(+)-SHIN1 ((+)-RZ-2994) is potent against cytosolic SHMT1 with an IC50 for blocking growth of less than 50 nM and 870 nM in SHMT2 deletion cells and HCT-116 cells, respectively[1].
[1]. Ducker GS, et al. Human SHMT inhibitors reveal defective glycine import as a targetable metabolic vulnerability of diffuse large B-cell lymphoma. Proc Natl Acad Sci U S A. 2017 Oct 24;114(43):11404-11409.