The present invention relates to heterotandem bicyclic peptide complexes which comprise a first peptide ligand, which binds to a component present on an immune cell, conjugated via a linker to a second peptide ligand, which binds to a component present on a cancer cell. The invention also relates to the use of said heterotandem bicyclic peptide complexes in preventing, suppressing or treating cancer.
[EN] PROCESS FOR THE PREPARATION OF HIGHLY PURE TORSEMIDE<br/>[FR] METHODE DE PREPARATION DE TORSEMIDE DE PURETE ELEVEE
申请人:FINETECH LAB LTD
公开号:WO2003097603A1
公开(公告)日:2003-11-27
The present invention provides a novel process for the preparation of highly pure torsemide [1] by reacting of 4-m-tolylamino-3-pyridinesulfonamide [2] with phenyl isopropylcarbamate in the presence of lithium base (F I, II). The present invention also provides a novel intermediate - torsemide lithium, also in hydrate or solvate form - which is a stable, solid compound, and may be simply isolated from the reaction mixture to give after acidification practically pure torsemide [1] without further purification steps.
A very high-yielding reaction of bis(o-nitrophenyl) carbonate with aliphatic amines under mild conditions has been developed. The resulting o-nitrophenyl carbamates were characterized by IR, H-1-NMR, C-13-NMR, and elemental analysis.
IZDEBSKI, JAN;PAWLAK, DANUTA, SYNTHESIS (BRD),(1989) N, C. 423-425