Reference

1,1-Alkanediol dicarboxylate linked antibacterial agents

1,1-Alkanediol dicarboxylate linked antibacterial agents. Jasys, Vytautas John; Kellogg, Michael Stephen (Pfizer Inc., USA). Eur. Pat. Appl. EP 83484 A1 13 Jul 1983, 124 pp. DESIGNATED STATES: R: AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C07D499-00; C07D499-32; C07D519-00; A61K031-43. ICA: C07D499-68; C07C069-75; C07C069-82; C07C069-38; C07C069-42; C07C069-44; C07C069-50. 74-97-5 and 87353-31-9 which are cas registry numbers of chemicals are mentioned. ICI: C07D519-00, C07D499-00. APPLICATION: EP 82-306683 14 Dec 1982. PRIORITY: US 81-334022 22 Dec 1981; US 82-429915 30 Sep 1982. DOCUMENT TYPE: Patent CA Section: 26 (Biomolecules and Their Synthetic Analogs) Section cross-reference(s): 1 Diesters of alkanedicarboxylic acids with penicillin esters and penicillanates, penicillanate dioxides, or hydroxyethyleneoxaazabicycloheptanecarboxylates were prepd. Thus, I was obtained from Na penicillanate dioxide, ampicillin, and K benzyl trans-1,4-cyclohexanedicarboxylate, ClCH2I, and BrCH2Cl in 10 steps. .

Postcrosslinking of styrene-divinylbenzene copolymers

Postcrosslinking of styrene-divinylbenzene copolymers. Popov, Georgi; Krauss, Dieter; Feistel, Lothar; Schwachula, Gerhard (VEB Chemiekombinat Bitterfeld, Ger. Dem. Rep.). Ger. (East) DD 203556 A1 26 Oct 1983, 16 pp. (German). (German Democratic Republic). CODEN: GEXXA8. CLASS: IC: C08J003-24. APPLICATION: DD 82-237248 8 Feb 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Weakly crosslinked copolymers of divinylbenzene and styrene are postcrosslinked with a dihaloalkane in suspension in the presence of a Friedel-Crafts catalyst, giving polymers with controlled swelling properties. Thus, a mixt. of 100 mL MeNO2, 0.1 mol AlCl3, 100 mL Br2CH2 [74-95-3], and 10.4 g divinylbenzene-styrene copolymer (I) [9003-70-7] was stirred 15 min at room temp. and 5 h at 60° to give crosslinked I (halogen substitution 0.07%) with degree of swelling in toluene 2.88 g/g, compared with 8. 9003-70-7 and 74-97-5 are just another two chemicals used in this study.14 g/g for the untreated I. .