Abstract

Suzuki–Miyaura coupling of 3-azido-5-(azidomethyl)phenylboronic acid pinacol ester with various aryl bromides affords corresponding diazido-functionalized biaryl compounds in good yields. This approach provides an easy access to radioisotope-free photoaffinity probes possessing biaryl structure. By using this method, we prepared a novel diazido-functionalized dantrolene analog, which showed selective inhibitory effect on physiological Ca 2+ release (PCR) from sarcoplasmic reticulum (SR) in mouse skeletal muscle without affecting Ca 2+-induced Ca 2+ release (CICR).

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