ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,419, issued on May 27, was assigned to Sumitomo Pharma Co. Ltd. (Osaka, Japan).
"Hemiasterlin derivative having cysteine residue" was invented by Atsushi Suwa (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A compound represented by formula (1):wherein b represents an integer of 1 to 5; X represents -NH- or -CO-; Z represents a group represented, for example, by formula (Z-1); R1 represents a hydrogen atom or (AB)m; AB represents a particular amino acid residue, and when there is a plurality of ABs, each AB may be the same as or different from each other and ABs are bonded to each other via an amide bond; m represents an integer of 1 to...