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Class Information
Number: 549/344
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) > Oxygen containing hetero ring (e.g., dioxirane, etc.) > Spiro > The spiro includes a hetero ring > Both rings which form the spiro are hetero rings > Polycyclo ring system having one of the two hetero rings which form the spiro as one of the cyclos
Description: Compounds wherein one of the two oxygen containing hetero rings in the spiro ring system is additionally one of the cyclos of a polycyclo ring system.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7323577 |
Process for producing benzofuran derivative |
Jan. 29, 2008 |
| 7196191 |
Catalytic oxidation of C--H bonds |
Mar. 27, 2007 |
| 7138427 |
5-.beta.-sapogenin and pseudosapogenin derivatives and their use in the treatment of dementia |
Nov. 21, 2006 |
| 6806283 |
Selective serotonin receptor antagonists and therapeutic applications thereof |
Oct. 19, 2004 |
| 6420130 |
Optical molecular sensors for cytochrome P450 activity |
Jul. 16, 2002 |
| 6310091 |
Fungicidal saponin, CAY-1, and isolation thereof from Capsium species fruit |
Oct. 30, 2001 |
| 6166034 |
Spiro piperidine derivatives as 5HT1D receptor antagonists |
Dec. 26, 2000 |
| 6133279 |
Therapeutic agents for renal diseases and organ preservatives |
Oct. 17, 2000 |
| 5874592 |
Physiologically active substance EI-2128-1 |
Feb. 23, 1999 |
| 5786492 |
Halichondrins |
Jul. 28, 1998 |
| 5688826 |
Excitatory amino acid derivatives |
Nov. 18, 1997 |
| 5663373 |
4-alkoxy-2, 6-di-t-butylphenol derivatives |
Sep. 2, 1997 |
| 5646308 |
Benzopyran derivatives |
Jul. 8, 1997 |
| 5637709 |
Photochromatic substances |
Jun. 10, 1997 |
| 5328929 |
Isolation and structure of spongistatin 2, spongistatin 3, spongistatin 4 and spongistatin 6 |
Jul. 12, 1994 |
| 5260414 |
Spirobislactone acrylate polymers |
Nov. 9, 1993 |
| 5091413 |
Antibiotic agent |
Feb. 25, 1992 |
| 5057590 |
Bislactone curing agents for epoxy resins and polymers obtained therefrom |
Oct. 15, 1991 |
| 4945171 |
Xanthene dyes having a fused (C) benzo ring |
Jul. 31, 1990 |
| 4864039 |
3,3'(2'H,2H-Spirobibenzofuran compounds |
Sep. 5, 1989 |
| 4835176 |
Glycookadaic acid, preparation thereof and use thereof |
May. 30, 1989 |
| 4611070 |
Spirodibenzopyrans |
Sep. 9, 1986 |
| 4434295 |
Anti-atherosclerotic 6,7-dihydro-7,7-disubstituted-khellin analogs |
Feb. 28, 1984 |
| 4415741 |
Chroman-4-ones and process for preparing same |
Nov. 15, 1983 |
| 4384094 |
3-Substituted- 7-dialkylamino-spiro(2H-1-benzopyran-2,3'-(3H)-naphtha(2,1-b)pyrans) |
May. 17, 1983 |
| 4382134 |
3-Substituted-7-alkoxy-spiro(2H -1-benzopyran-2,3'-(3H)-naphtho(2,1-B)pyrans) |
May. 3, 1983 |
| 4351957 |
Process for preparing diaminodiphenyl-alkanes |
Sep. 28, 1982 |
| 4348508 |
3-Substituted-7-alkoxy-2,2'-Spirobi[2H-1-benzopyrans] |
Sep. 7, 1982 |
| 4178381 |
C-homoestratrienes |
Dec. 11, 1979 |
| 4110348 |
7,7'-Diamino derivatives of 2,2'-spirodibenzopyranes |
Aug. 29, 1978 |
| 4057562 |
Certain naphthofurans and method for their manufacture |
Nov. 8, 1977 |
| RE29163 |
1,2,3,4,10,19-Hexanor-9-oxo-5,9-seco-25D-spirostan-5-oic acid |
Mar. 29, 1977 |
| 3985936 |
Pressure-sensitive and/or heat sensitive copying or recording material |
Oct. 12, 1976 |
| 3974180 |
Furanes, their manufacture and use |
Aug. 10, 1976 |
| 3971808 |
Spirodipyrans and chromogenic materials for copying processes |
Jul. 27, 1976 |
| 3957828 |
3-Aminoalkyl-1,3-dihydro-3-phenylspiro[isobenzofurans] |
May. 18, 1976 |
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