151038-94-7, The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism. If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular.151038-94-7, name is 6-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)hexanehydrazide 2,2,2-trifluoroacetate. A new synthetic method of this compound is introduced below.
8 mg (7.5 mumol) of N-(3-carboxypropyl)-N-methyl-L-valyl-N-[(3R,4S,5S)-3-methoxy-1-{(2S)-2-[(1R,2R)-1-methoxy-2-methyl-3-oxo-3-{[(2S,3E)-1-phenyl-4-(4-sulphophenyl)but-3-en-2-yl]amino}propyl]pyrrolidin-1-yl}-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide, 2.8 mg (8.2 mumol) of 6-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)hexanehydrazide trifluoroacetate, 3.4 mg (9 mumol) of HATU and 3.9 mul of Huenig’s base were stirred in 0.77 ml of DMF at RT for 20 h. Subsequently, the reaction mixture was purified by prep. HPLC. [2213] 3 mg (31% of theory) of the title compound were obtained. [2214] LC-MS (Method 1): Rt=0.90 min; MS (ESIpos): m/z=1164 (M+H)+, 151038-94-7
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Reference£º
Patent; Lerchen, Hans-Georg; Hammer, Stefanie; Harrenga, Axel; Kopitz, Charlotte Christine; Nising, Carl Friedrich; Sommer, Anette; Stelte-Luowig, Beatrix; Mahlert, Christoph; Schuhmacher, Joachim; Golfier, Sven; Greven, Simone; Bruder, Sandra; US2015/23989; (2015); A1;,
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