6-Nitro-2-piperazin-1-yl-1,3-benzothiazole → (2-Isopropoxy-5-methanesulfonyl-phenyl)-[4-(6-nitro-benzothiazol-2-yl)-piperazin-1-yl]-methanone

Participants

Reaction Steps

Prepared in analogy to example 1.1 b) from 2-Isopropoxy-5-methanesulfonyl-benzoic acid (Example 2.2) and 6-Nitro-2-piperazin-1-yl-benzothiazole in tetrahydrofuran. The crude material was purified by chromatography (SiO2, heptane/ethyl acetate), and the residue was then triturated in ether to yield the title compound as a yellow solid.

Provenance & Evidence