Precursor commonly used in the synthesis of biologically active compounds including: Multisubstituted purines for use as P2X7 antagonists in the treatment of pain; Heteroaryl substituted tetrahydropyrroloijquinolinone derivatives as aldosterone synthase inhibitors; Fluorohydroquinolineethanol as a CETP inhibitor; Biaryl amides with muscarinic acetylcholine receptor subtype M1 agonist activity; C2-aryl pyrrolobenzodiasepine antitumor agents; Piperazine-bisamide for obesity treatments Precursor commonly used in the synthesis of biologically active compounds including: Multisubstituted purines for use as P2X7 antagonists in the treatment of pain; Heteroaryl substituted tetrahydropyrroloijquinolinone derivatives as aldosterone synthase inhibitors; Fluorohydroquinolineethanol as a CETP inhibitor; Biaryl amides with muscarinic acetylcholine receptor subtype M1 agonist activity; C2-aryl pyrrolobenzodiasepine antitumor agents; Piperazine-bisamide for obesity treatments