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Class Information
Number: 540/359
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 > Hetero ring is four-membered containing nitrogen and having chalcogen double bonded directly to a ring carbon which is adjacent to the ring nitrogen > Additional chalcogen bonded directly to the hetero ring > The additional chalcogen is sulfur which is bonded directly to chalcogen > The sulfur is double bonded directly to the chalcogen
Description: Compounds in which the sulfur is double bonded directly to the additional chalcogen.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6908996 |
Compounds and method for preparing 3-methylcephams |
Jun. 21, 2005 |
| 6683176 |
Intermediates for and synthesis of 3-methylene cephams |
Jan. 27, 2004 |
| 6569847 |
Substituted azetidin-2-ones as cysteine protease inhibitors |
May. 27, 2003 |
| 6335324 |
Beta lactam compounds and their use as inhibitors of tryptase |
Jan. 1, 2002 |
| 6221860 |
Beta-lactam inhibitors of CoA-IT |
Apr. 24, 2001 |
| 6071899 |
Azetidinone derivatives for the treatment of atherosclerosis |
Jun. 6, 2000 |
| 5916887 |
4-substituted-3-(2-amino-2-cycloalkyl methyl)-acetamido azetidin-2-one derivatives as cysteine proteinase regulators |
Jun. 29, 1999 |
| 5770729 |
Ozonide reducing agent |
Jun. 23, 1998 |
| 5744467 |
Sulfur-substituted azetidinone compounds useful as hypocholesterolemic agents |
Apr. 28, 1998 |
| 5604222 |
Method for the preparation of 2-chloro sulfinyl azetidinones |
Feb. 18, 1997 |
| 5580424 |
Apparatus and method for sealing a suction box of a suction roll in a paper machine |
Dec. 3, 1996 |
| 5466686 |
Amides of 4-oxo-azetidine-2-sulfonic acids and salts thereof, processes for their preparation and their use |
Nov. 14, 1995 |
| 5466686 |
Amides of 4-oxo-azetidine-2-sulfonic acids and salts thereof, processes for their preparation and their use |
Nov. 14, 1995 |
| 5453502 |
1,3,4 substituted and bicyclic derivatives of 2-azetidinones and processes for preparation thereof |
Sep. 26, 1995 |
| 5347000 |
Process for the preparation of 2-chlorosulfinylazetidinone |
Sep. 13, 1994 |
| 5250677 |
Azetidin-2-one derivatives as serine protease inhibitors |
Oct. 5, 1993 |
| 5250525 |
4-oxo-azetidine-2-sulfonic acids and their salts, processes for the preparation thereof and their use |
Oct. 5, 1993 |
| 5229381 |
Substituted azetidinones as anti-inflammatory and antidegenerative agents |
Jul. 20, 1993 |
| 5175283 |
Azetidin-2-one derivatives as serine protease inhibitors |
Dec. 29, 1992 |
| 5116972 |
4-(2,3 epoxypropane)azetidinones |
May. 26, 1992 |
| 5106475 |
Process for preparing 4-substituted azetidinones |
Apr. 21, 1992 |
| 5075439 |
Processes for (3S,4R)-3-[1(R)-t-butyl-dimethylsilyloxy)-ethyl]-4-[1-oxo-3-thiolanylthi o(thiocarbonyl)thio]azetidin-2-ones and intermediates therefor |
Dec. 24, 1991 |
| 5070195 |
Ring-opening process for preparation of 2-chlorosulfinyl azetidinones |
Dec. 3, 1991 |
| 5053501 |
Preparation of 3-exomethylenecepham sulfoxides and 2-chlorosulfinylazetidinones using molecular sieves |
Oct. 1, 1991 |
| 5037819 |
Azetidin-2-one derivatives as serine protease inhibitors |
Aug. 6, 1991 |
| 4992545 |
Process for preparing 4-substituted azetidinones |
Feb. 12, 1991 |
| 4855421 |
2-Oxoazetidines, methods for their preparation, and their use |
Aug. 8, 1989 |
| 4816581 |
4-(phenylthio or phenylsulfonyl) azetidinones and process of manufacture |
Mar. 28, 1989 |
| 4725678 |
Azetidinone intermediates for the preparation of penem derivatives |
Feb. 16, 1988 |
| 4689411 |
4-thio azetidinone intermediates and process for the preparation of the same |
Aug. 25, 1987 |
| 4680391 |
Substituted azetidinones as anti-inflammatory and antidegenerative agents |
Jul. 14, 1987 |
| 4619783 |
Process and intermediates for the preparation of penem derivatives |
Oct. 28, 1986 |
| 4614614 |
Process for the manufacture of optically active azetidinones |
Sep. 30, 1986 |
| 4595539 |
Preparation of penem derivatives and azetidinone intermediates |
Jun. 17, 1986 |
| 4537720 |
N-substituted-2-(R)-(sulfinic acid)-3-(S)-(acylamino)-4-oxo-azetidines and process |
Aug. 27, 1985 |
| 4537719 |
4-Methylsulfonyl-azetidinone derivatives |
Aug. 27, 1985 |
| 4536334 |
Preparation of .beta.-lactam derivatives |
Aug. 20, 1985 |
| 4525304 |
Process for preparing oxazolinoazetidinones |
Jun. 25, 1985 |
| 4515719 |
Azetidinone sulfinic acids from cephalosporin sulfones |
May. 7, 1985 |
| 4508649 |
Process for preparing optically active penems |
Apr. 2, 1985 |
| 4482565 |
.beta.-Lactam-containing antibacterial agents and .beta.-lactamase inhibitors |
Nov. 13, 1984 |
| 4478749 |
2-Oxo-1-(substituted phosphorous)azetidines |
Oct. 23, 1984 |
| 4477660 |
7-(S)-Acylaminocephalosporin sulfones and process |
Oct. 16, 1984 |
| 4459405 |
Desacetylcephalosporin sulfones |
Jul. 10, 1984 |
| 4458071 |
Process for 1-oxa-.beta.-lactams |
Jul. 3, 1984 |
| 4440682 |
Stereospecific synthesis of isocephalosporins and 2-oxa isocephalosporins |
Apr. 3, 1984 |
| 4436596 |
N-Substituted-2-(R)-(sulfinic acid)-3-(S)-(acylamido)-4-oxo-azetidines and process |
Mar. 13, 1984 |
| 4421686 |
4-Norbornyl-sulfonyl azetidinone intermediates and process for preparing (S)-3-acylamino-4-substituted-2-azetidinones |
Dec. 20, 1983 |
| 4368156 |
Preparation of 4-haloazetidin-2-ones from 4-sulfinoazetidin-2-ones |
Jan. 11, 1983 |
| 4331677 |
7-Oxo-4-1-aza-bicyclo-[3,2,0]-heptane derivatives |
May. 25, 1982 |
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