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Class Information
Number: 548/520
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Hetero ring is five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.) > Additional hetero ring, which is attached directly or indirectly to the five-membered hetero ring by nonionic bonding > The additional hetero ring also contains nitrogen > Ring carbon of each of the two nitrogen containing hetero rings is bonded directly to chalcogen (e.g., both rings may be bonded to the same oxygen atom or to different oxygen atoms, etc.) > Plural chalcogens bonded directly to ring carbons of each of the two nitrogen containing hetero rings (e.g., bis-succinimides, etc.)
Description: Compounds wherein at least two chalcogens (i.e., oxygen, sulfur, selenium, or tellurium) are bonded directly to ring carbons of each of the two nitrogen containing hetero ring.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7094872 |
Activated polyethylene glycol esters |
Aug. 22, 2006 |
| 7091285 |
Adducts of mid-range vinylidene content polyisobutylene polymer products and methods for making the same |
Aug. 15, 2006 |
| 6706892 |
Pulmonary delivery for bioconjugation |
Mar. 16, 2004 |
| 6693202 |
Muscarinic receptor antagonists |
Feb. 17, 2004 |
| 6218536 |
1,2-bis-adducts of stable nitroxides with substituted ethylenes and stabilized compositions |
Apr. 17, 2001 |
| 6005069 |
Production of polysuccinimide and derivatives thereof in a sulfur-containing solvent |
Dec. 21, 1999 |
| 5985815 |
Bleach activators |
Nov. 16, 1999 |
| 5976783 |
Bis-maleimido cross-linking agents |
Nov. 2, 1999 |
| 5925651 |
Inhibitors of farnesyl-protein transferase |
Jul. 20, 1999 |
| 5919923 |
Meso-substituted tripyrrane compounds, compositions, and methods for making and using the same |
Jul. 6, 1999 |
| 5880070 |
Cross-linked succinimides from an acid derivative, a polyamine, and a polycarboxylic acid derivative |
Mar. 9, 1999 |
| 5872191 |
Process for producing a polyoxyalkylene derivatives substituted with succinimidyl group |
Feb. 16, 1999 |
| 5856427 |
Process for the production of polysuccinimide |
Jan. 5, 1999 |
| 5808096 |
Process for preparing active carbonates of polyalkylene oxides for modification of polypeptides |
Sep. 15, 1998 |
| 5777012 |
Polysulfides of n-methylpyrrolidinone |
Jul. 7, 1998 |
| 5767284 |
Process for producing a polyoxyalkylene derivative substituted with succinimidyl group |
Jun. 16, 1998 |
| 5650234 |
Electrophilic polyethylene oxides for the modification of polysaccharides, polypeptides (proteins) and surfaces |
Jul. 22, 1997 |
| 5644001 |
Resin-free succinimides process of making, and compositions containing same |
Jul. 1, 1997 |
| 5630996 |
Two-step pretargeting methods using improved biotin-active agent conjugates |
May. 20, 1997 |
| 5612460 |
Active carbonates of polyalkylene oxides for modification of polypeptides |
Mar. 18, 1997 |
| 5610318 |
Imidocarboxylic acid activators and sulfimidocarboxylic acid activators processes for their preparation and their use |
Mar. 11, 1997 |
| 5556976 |
Reactive cyclic N-sulfatoimides and cellulose crosslinked with the imides |
Sep. 17, 1996 |
| 5523417 |
Resin-free succinimides |
Jun. 4, 1996 |
| 5507843 |
Fuel compositions |
Apr. 16, 1996 |
| 5508434 |
Production of a polysuccinimide and derivatives thereof in the presence of a sulfur-containing dehydrating agent |
Apr. 16, 1996 |
| 5504128 |
Thermoplastic resin composition and a method of molding the same |
Apr. 2, 1996 |
| 5491213 |
Production of polysuccinimide |
Feb. 13, 1996 |
| 5484945 |
Preparation process of polysuccinimide |
Jan. 16, 1996 |
| 5468404 |
Lubricating oil additives, their preparation and use |
Nov. 21, 1995 |
| 5466387 |
Oil-soluble adducts of disuccinimides and anhydrides of unsaturated bicarboxylic aliphatic acids |
Nov. 14, 1995 |
| 5464549 |
Oil soluble dispersants suitable for use in fuels and lubricants |
Nov. 7, 1995 |
| 5439603 |
Lubricating oil additives, their preparation and use |
Aug. 8, 1995 |
| 5435812 |
Modified succinimides as dispersants and detergents and lubricant and fuel compositions containing same |
Jul. 25, 1995 |
| 5424445 |
Alkoxylation products |
Jun. 13, 1995 |
| 5405966 |
Trichothecene conjugates |
Apr. 11, 1995 |
| 5399715 |
Polyamino oligomers and polymaleimide compounds |
Mar. 21, 1995 |
| 5391764 |
Polyaspartic acid manufacture |
Feb. 21, 1995 |
| 5380873 |
Homobifunctional agents for coupling enzymes and the like to antibodies and the like |
Jan. 10, 1995 |
| 5356885 |
Substituted oxotremorine derivatives and pharmaceutical use thereof |
Oct. 18, 1994 |
| 5346910 |
Maleimide derivatives of oxotremorine |
Sep. 13, 1994 |
| 5329020 |
Preparation of polysuccinimide |
Jul. 12, 1994 |
| 5324844 |
Active carbonates of polyalkylene oxides for modification of polypeptides |
Jun. 28, 1994 |
| 5321142 |
Compounds from biopolymers and effector substances which are linked via optically active amino acid derivatives, processes for the preparation thereof and the use thereof |
Jun. 14, 1994 |
| 5315010 |
Polyaspartic acid manufacture |
May. 24, 1994 |
| 5283317 |
Intermediates for conjugation of polypeptides with high molecular weight polyalkylene glycols |
Feb. 1, 1994 |
| 5281698 |
Preparation of an activated polymer ester for protein conjugation |
Jan. 25, 1994 |
| 5273668 |
Oil soluble dispersant additives modified with bis-keto/thioketo compounds |
Dec. 28, 1993 |
| 5266081 |
Multifunctional ashless dispersants |
Nov. 30, 1993 |
| 5264004 |
Multifunctional ashless detergent additives for fuels and lubricants |
Nov. 23, 1993 |
| 5256324 |
Modified succinimide or succinamide dispersants and their production |
Oct. 26, 1993 |
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