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Class Information
Number: 549/421
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.) > The hetero ring is six-membered > Chalcogen bonded directly to the hetero ring > Alicyclic ring bonded directly to the chalcogen
Description: Compounds in which an alicyclic ring is bonded directly to the chalcogen.










Patents under this class:
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Patent Number Title Of Patent Date Issued
4045490 9,10-Seco-steroid preparation Aug. 30, 1977
4044004 Total steroid synthesis employing substituted isoxazole derivatives Aug. 23, 1977
4041050 3,5-Bisoxygenated 2-(.omega.-halo-3-oxo-1-alkenyl)-cyclopentane-1-heptanoic acids and derivatives thereof Aug. 9, 1977
4039571 Organic derivatives Aug. 2, 1977
4031129 15-Deoxy-PGE.sub.1 and method for preparing same Jun. 21, 1977
4029814 Phenyl-substituted prostaglandin-e type analogs Jun. 14, 1977
4026949 Optically active cyclohexane derivatives May. 31, 1977
4021452 2,5-Dihydro-2,5-dialkoxyfuran derivatives May. 3, 1977
4018804 Intermediate for synthesis of Thromboxane B.sub.2 Apr. 19, 1977
4018812 16-METHYLENE-PROSTAGLANDIN COMPOUNDS Apr. 19, 1977
4010201 Organic compounds Mar. 1, 1977
4009196 2-Acyl-3-substituted cyclopentan-1-ones and process for their preparation Feb. 22, 1977
4004021 Cyclopentane derivatives Jan. 18, 1977
4002663 Deuterated prostaglandin analogs Jan. 11, 1977
3998852 Novel prostaglandin intermediates and process for the production thereof Dec. 21, 1976
3997588 3,5-Bisoxygenated 2-(.omega.-halo-3-oxygenated-1-alkenyl)-cyclopentane-1-heptanoic acids and derivatives thereof Dec. 14, 1976
3993664 Preparation of prostaglandin intermediates Nov. 23, 1976
3991084 Steroid total synthesis process utilizing a cyanoalkyl A-ring precursor Nov. 9, 1976
3985733 Stereospecific total steroidal synthesis via substituted C/D-trans indanones Oct. 12, 1976
3983154 Racemic prostaglandins of the 2-series and analogs thereof Sep. 28, 1976
3980642 15-Substitute D-.omega.-pentanorprostaglandins Sep. 14, 1976
3971809 3A,4,7,7A-Tetrahydro-4-phenylethyl-7a-alkyl-5(6H)-indanones and process for the preparation thereof Jul. 27, 1976
3971826 15-Substituted-.omega.-pentanorprostaglandins Jul. 27, 1976
3970685 (DL)-13-Substituted sulfinyl-prostaglandin-like compounds Jul. 20, 1976
3969412 16,17-Seco-delta 4,9(10) and -delta 4,9(10),11 steroids Jul. 13, 1976
3965143 16-Oxygenated prostanoic acid derivatives Jun. 22, 1976
3956284 Heterocyclic 15-substituted-.omega.-pentanorprostoglandins May. 11, 1976
3954741 N-substituted prostaglandin carboxamides May. 4, 1976
3954811 Production of cyclopentane derivatives May. 4, 1976
3952033 Furan intermediates and process for synthesis of 4-hydroxycyclopetenones, prostaglandin synthesis intermediates Apr. 20, 1976
3950406 Hydroxylated 15-deoxy derivatives of 9-hydroxy-13-trans-prostenoic acid Apr. 13, 1976
3950389 Stereospecific total steroidal synthesis via substituted C/D-trans indanones Apr. 13, 1976
3935240 Cyclopentylheptenoic acids and derivatives Jan. 27, 1976
3935254 5C-PROSTEN-13-YNOIC ACIDS Jan. 27, 1976
3932467 Process for the production of 2.beta.-formyl 3.alpha.-protected hydroxy-5-oxocyclopentane-1.alpha.-heptanoic acids and esters corresponding Jan. 13, 1976
3932519 7,7A-Dihydro-4-[2-(3-alkoxyphenyl)-2-hydroxyethyl]-7a-alkyl-1, 5(6H)-indandiones,3,4,8,8a-tetrahydro-5-[2-(3-alkoxyphenyl)-2-hydroxyeth yl]-8a-alkyl-1,6(7H)-naphthalenediones and processes for Jan. 13, 1976
3931297 10-Hydroxy PGC compounds Jan. 6, 1976
3931282 11.alpha.-Hydroxymethyl prostaglandins Jan. 6, 1976

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