Reference

Metal complexes of biologically important ligands

Metal complexes of biologically important ligands.Several substances are used for example 187962-07-8 and 20859-02-3 which are their cas registry numbers. XC. Chiral cyclopentadienyl-nitrosyl-molybdenum complexes of a-amino carboxylates: (h5-C5R5)(ON)(I)Mo(a-aminocarboxylate) (R = H, Me). Maurus, Michael; Aechter, Bernd; Hoffmueller, Winfried; Polborn, Kurt; Beck, Wolfgang (Inst. Anorganische Chemie Ludwig-Maximilians-Univ., Munich, Germany). Zeitschrift fuer Anorganische und Allgemeine Chemie, 623(2), 299-303 (German) 1997 Barth. CODEN: ZAACAB. ISSN: 0044-2313. DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) Section cross-reference(s): 34, 75 The reactions of [(h5-C5H5)Mo(NO)I2]2 with glycinate, D-phenylglycinate, L-prolinate and L-azetidine-2-carboxylate give the chiral chelate complexes (h5-C5H5)(ON)(I)Mo(a-aminocarboxylate), e.g. I, as mixts. of isomers. The x-ray diffraction of a crystal of I shows trans configuration of the amino acid and nitrosyl donors in a tetragonal pyramid. .

Continuous cofactor regeneration

Continuous cofactor regeneration. Utilization of polymer bound NAD(H) for the production of optically active acids. Wandrey, C.; Bossow, B. (Inst. Biotechnol.Chemicals with cas numbers 61-90-5 and 20859-02-3 also play role., Nucl. Res. Cent., Juelich D-5170, Fed. Rep. Ger.). Biotekhnol. Biotekh., (3), 8-13 (English) 1986. CODEN: BIBIEY. DOCUMENT TYPE: Journal CA Section: 16 (Fermentation and Bioindustrial Chemistry) The title method was carried out to convert a-keto acids to optically pure a-amino acids by means of leucine dehydrogenase [9082-71-7] in a membrane reactor. The cofactor is regenerated by the formate/formate dehydrogenase (FDN) system. NAD [53-84-9] and NADH [58-68-4] covalently bound to polyethylene glycol 20,000 were used as cofactors. Thus, a-ketoisocaproate [816-66-0] and trimethylpyruvate [815-17-8] were converted to L-leucine [61-90-5] and L-tert-leucine [20859-02-3], resp. The results demonstrate the feasibility of continuous processing of NAD(H)-dependent systems for months. With cycle no. >100,000 the cost of the cofactor is no longer economically limiting. .