Isostere-Based Design of 8-Azacoumarin-Type Photolabile Protecting Groups: A Hydrophilicity Increasing Strategy for Coumarin-4-ylmethyls.
Tetsuo Narumi, Hikaru Takano, Nami Ohashi, Akinobu Suzuki, Toshiaki Furuta & Hirokazu Tamamura

Org. Lett., 16(4), 1184-1187 (2014)