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...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.

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Class 552/653 - 9,10-Seco-cyclopentanohydrophenanthrene ring system or 9,10-seco cyclopentanohydrophenanthrene ring system having a bond between the 3- and 5-positions (e.g., vitamin D compounds, cholecalciferols, activated 7-dehydrocholesterols, dihydrotachysterols, 3,5 cyclovitamin D compounds, etc.)


Subclass of Class 552 - Organic compounds -- part of the class 532-570 series
Definition: Compounds under Class 260, ... , which have the following
No. of patents: 410
Last issue date: 05/08/2012


1                      
NumberTitleIssue Date
8173824Process for producing vitamin D derivative using convergent method
There are provided a novel process for producing [{(5Z,7E)-(1S,3R,20S)-1,3-dihydroxy-9,10-secopregna-5,7,10(19),16-tetraen-20-yl}oxy]-N-(2,2,3,3,3-pentafluoropropyl)acetamide, which process is shown in the following reaction scheme: ...
05/08/2012
8026379Paricalcitol intermediates
The present invention relates to a compound and a novel process for the preparation of Paricalcitol intermediates. ...
09/27/2011
8013176Paricalcitol purification
Paricalcitol, a synthetic vitamin D analog, is purified to a purity greater than 99.7% by crystallization from solution in isopropyl acetate solvent, followed by filtration and vacuum drying. Isopropyl acetate appears to be unique among commonly available and pharma...
09/06/2011
7795459Paricalcitol purification
Paricalcitol, a synthetic vitamin D analog, is purified to a purity greater than 99.7% by crystallization from solution in isopropyl acetate solvent, followed by filtration and vacuum drying. Isopropyl acetate appears to be unique among commonly available and pharma...
09/14/2010
7524980Vitamin Dlactam derivative
Compounds expressed by the following formula (1) or pharmaceutically permissible solvate thereof which is effective for treating Paget's disease of bone, hypercalcemia or osteoporosis. In the formula, R1 is a C
04/28/2009
74026882,2-Di-substituted 1alpha,25-dihydroxy-19-norvitamin D derivative
A novel 2,2-di-substituted 19-norvitamin D derivative. It is a compound represented by the general formula (I) wherein R1 and R2 are the same or different and each represents hydroxy and A represents hydrogen, or an unsubstituted linear or branched alkyl.
07/22/2008
7358092Method for the determination of 25-hydroxycholecalciferol in feed
A method for quantitative determination of 25-hydroxycholecalciferol in feed is described. The method includes the steps of adding a defined amount of an internal standard which has a mass different from 25-hydroxycholecalciferol and a polarity similar to that compo...
04/15/2008
7332482Method for treating benign prostatic hyperplasia
The use of 1-alpha-fluoro-25-hydroxy-16,23E-diene-26,27-bishomo-20-epi-cholecalciferol, or a pharmaceutically acceptable salt or ester thereof, for the manufacture of a medicament for the prevention and/or treatment of benign prostatic hyperplasia (BPH) and associat...
02/19/2008
7323580Crystals of a vitamin D derivative and a method for the preparation thereof
A compound represented by formula (III): ...
01/29/2008
73009252-ethyl and 2-ethylidene-19-nor-vitamin D compounds
Biologically active 19-nor vitamin D analogs substituted at C-2 in the A-ring with an ethylidene or an ethyl group. These compounds have preferential activity on mobilizing calcium from bone and either high or normal intestinal calcium transport activity which allow...
11/27/2007
7253293Enzymatic method to produce 7-dehydropregnenolone, vitamin D3-like compounds and derivatives thereof
Provided herein are enzymatic methods of producing steroid compounds such as 7-dehydropregnenolone, hydroxy derivatives thereof and vitamin D2- and D3-like compounds and derivatives thereof. Also provided are the derivatives of the vitamin D3-like compounds so gener...
08/07/2007
72447192-methylene-19,26,27-trinor-(20S)-1α-hydroxyvitamin Dand its uses
This invention discloses 2-methylene-19,26,27-trinor-(20S)-vitamin D analogs, and specifically 2-methylene-19,26,27-trinor-(20S)-1α-hydroxyvitamin D3 and pharmaceutical uses therefor. This compound exhibits pronounced activity in arresting the proliferat...
07/17/2007
72417472-propylidene-19-nor-vitamin D compounds
2-propylidene-19-nor-vitamin D compounds are disclosed as well as pharmaceutical uses for these compounds and methods of synthesizing these compounds. These compounds are characterized by high bone calcium mobilization activity and high intestinal calcium transport ...
07/10/2007
724174817,20(Z)-dehydro vitamin D analogs and their uses
This invention discloses 17,20(Z)-dehydro vitamin D analogs, and specifically 17(Z)-1α,25-dihydroxy-17(20)-dehydro-2-methylene-19-nor-vitamin D3 and pharmaceutical uses therefor. This compound exhibits pronounced activity in arresting the proliferation o...
07/10/2007
724190919,26,27-trinor-1α,25-dihydroxyvitamin Dcompounds
Compounds of formula 1 are provided where X1, X2, and X3 are independently selected from H or hydroxy protecting groups, and R1 and R2 have the definitions provided herein. Such compounds may be used in preparin...
07/10/2007
72417492α-Methyl and 2β-methyl analogs of 19,26,27-trinor-(20S)-1α-hydroxyvitamin Dand their uses
This invention discloses 2α-methyl and 2β-methyl analogs of 19,26,27-trinor-(20S)-1α-hydroxyvitamin D3 and pharmaceutical uses therefor. These compounds exhibit pronounced activity in arresting the proliferation of undifferentiated cells and inducing t...
07/10/2007
72417502-methylene-19-nor-1alpha-hydroxy-17-ene-homopregnacalciferol and its uses
This invention discloses 2-methylene-19-nor-17-ene vitamin D analogs, and specifically 2-methylene-19-nor-1α-hydroxy-17-ene-homopregnacalciferol and pharmaceutical uses therefor. This compound exhibits pronounced activity in arresting the proliferation of undiffere...
07/10/2007
72417512α-methyl-19-nor-(20S)-1α-hydroxy-bishomopregnacalciferol and its uses
This invention discloses 2α-methyl-19-nor-(20S)-vitamin D analogs, and specifically 2α-methyl-19-nor-(20S)-1α-hydroxy-bishomopregnacalciferol and pharmaceutical uses therefor. This compound exhibits pronounced activity in arresting the proliferation of undifferen...
07/10/2007
724175217,20(E)-dehydro vitamin D analogs and their uses
This invention discloses 17,20(E)-dehydro vitamin D analogs, and specifically 17(E)-1α,25-dihydroxy-17(20)-dehydro-2-methylene-19-nor-vitamin D3 and pharmaceutical uses therefor. This compound exhibits pronounced activity in arresting the proliferation o...
07/10/2007
72386812-Methylene-18,19-dinor-1α-hydroxy-homopregnacalciferol and its uses
This invention discloses 2-methylene-18,19-dinor-vitamin D analogs, and specifically 2-methylene-18,19-dinor-1α-hydroxy-homopregnacalciferol and pharmaceutical uses therefor. This compound exhibits pronounced activity in arresting the proliferation of undifferentia...
07/03/2007
RE39706Crystalline form of a vitamin D analogue
The present invention relates to calcipotriol hydrate—a new crystalline form of calcipotriol—with superior technical properties and with superior stability. ...
06/26/2007
72356802-methylene-19-nor-(23S)-25-dehydro-1α-hydroxyvitamin D-26,23-lactone and 2-methylene-19-nor-(23R)-25-dehydro-1α-hydroxyvitamin D-26,23-lactone
Compounds of formula 1A and 1B are provided where X1 and X2 are independently selected from H or hydroxy protecting groups. Such compounds may be used in preparing pharmaceutical compositions and are useful in treating a variety of biological d...
06/26/2007
72328102-methylene-19-nor-vitamin D2 compounds
2-Methylene-19-nor-24(S) and 24(R) derivatives of 1α,25-dihydroxyvitamin D2 are disclosed. These compounds are characterized by minimal bone calcium mobilization activity and relatively high intestinal calcium transport activity. This results in novel th...
06/19/2007
7214671Use of 2-methylene-19-nor-20(S)-1α,25-dihydroxyvitamin Dfor the prophylaxis of bone diseases
This invention provides pharmaceutical uses for 2-methylene-19-nor-20(S)-1α,25-dihydroxyvitamin D3. This compound is characterized by high bone calcium mobilization activity demonstrating preferential activity on bone. This results in a novel therapeutic...
05/08/2007
7214670Use of 2-methylene-19-nor-20(S)-1α,25-dihydroxyvitamin Dto increase the life expectancy of human beings
This invention provides pharmaceutical uses for 2-methylene-19-nor-20(S)-1α,25-dihydroxyvitamin D3. Administration of this compound increases the life expectancy of human beings, especially elderly human beings. In particular, it increases the survival r...
05/08/2007
7211172Method of photochemical synthesis of vitamin Ds
An enhanced photochemical method of making vitamin D includes irradiating a reaction mixture of precursor molecules with light having a wavelength of 254 nm and with light having a wavelength of 313 nm to produce previtamin D, and is followed by heating at a tempera...
05/01/2007
7211680Vitamin D derivatives with carbo-or heterocyclic substituents at C-25, a process for their production, intermediate products and their use for producing medicaments
Compounds of Formula I, wherein Y1, Y2, R1–R6, Q and Z are as defined herein, are vitamin D derivatives. These compounds are useful for, e.g., the treatment hyperprol...
05/01/2007
7208484Method of synthesizing 1alpha-hydroxy-2-methylene-19-nor-homopregnacalciferol
A method of making 1α-hydroxy-2-methylene-19-nor-homopregnacalciferol. The method includes the steps of condensing a bicyclic ketone with an allylic phosphine oxide to produce a protected 19-nor-pregnacalciferol analog, thereafter cleaving the protecting group to f...
04/24/2007
7205286(20S)-1α-hydroxy-2α-methyl and 2β-methyl-19-nor-vitamin Dand their uses
This invention discloses (20S)-1α-hydroxy-2α-methyl-19-nor-vitamin D3 and (20S)-1α-hydroxy-2β-methyl-19-nor-vitamin D3 and pharmaceutical uses therefor. These compounds exhibit pronounced activity in arresting the proliferation of undiffere...
04/17/2007
7205420Epimerization of analogs of vitamin D
Provided is a method of general applicability of epimerizing a vitamin-D analog having an asymmetric allylic carbon atom at the C-24 position. The method is of particular utility in making calcipotriene. ...
04/17/2007
716658524-Sulfur-substituted analogs of 1α,25-dihydroxy vitamin D
The present invention provides novel C24-sulfone analogs of 1α,25-dihydroxy vitamin D3, compositions comprising these compounds and methods of using these compounds as selective inhibitors of CYP24. In particular, the compounds of the invention are usefu...
01/23/2007
71415582-ethyl and 2-ethylidene-19-nor-vitamin D compounds
Biologically active 19-nor vitamin D analogs substituted at C-2 in the A-ring with an ethylidene or an ethyl group. These compounds have preferential activity on mobilizing calcium from bone and either high or normal intestinal calcium transport activity which allow...
11/28/2006
7122533Cosalane compounds and methods for their use
The present invention relates to methods, compounds and compositions for inhibiting effective binding of a chemokine to its cellular receptor. In one form of the invention, a method includes contacting a cellular population with an effective amount of cosalane or an...
10/17/2006
7115758Vitamin D derivatives with cyclic substructures in the side chains, process and intermediate products for their production, and the use for the production of pharmaceutical agents
The invention relates to vitamin D derivatives of general formula I, process for their production, intermediate products of the process as well as the use for the production of pharmaceutical agents. ...
10/03/2006
711257926,27-Homologated-20-EPI-2-alkyl-19-nor-vitamin D compounds
This invention provides a novel class of vitamin D related compounds, namely, the 2-alkyl-19-nor-vitamin D derivatives, as well as a general method for their chemical synthesis. The compounds have the formula: wh...
09/26/2006
710186524-sulfoximine vitamin D3 compounds
The present invention provides novel sulfoximine compounds, compositions comprising these compounds and methods of using these compounds as inhibitors of CYP24. In particular, the compounds of the invention are useful for treating diseases which benefit from a modul...
09/05/2006
7094775Method of treating breast cancer using a combination of vitamin D analogues and other agents
The invention provides therapeutic methods for inhibiting, ameliorating or alleviating the hyperproliferative cellular activity of diseases of the breast, e.g., breast cancer, which includes administering to a patient in need thereof an active vitamin D analogue and...
08/22/2006
7094916(20S)-1α-hydroxy-2α-methyl and 2β-methyl-19-nor-vitamin Dand their uses
This invention discloses (20S)-1α-hydroxy-2α-methyl-19-nor-vitamin D3 and (20S)-1α-hydroxy-2β-methyl-19-nor-vitamin D3 and pharmaceutical uses therefor. These compounds exhibit pronounced activity in arresting the proliferation of undiffere...
08/22/2006
709477426,27-homologated-20-epi-2-alkylidene-19-nor-vitamin D compounds
This invention provides a novel class of vitamin D related compounds, namely, the 2-alkylidene-19-nor-vitamin D derivatives, as well as a general method for their chemical synthesis. The compounds have the formula:
08/22/2006
7094776Method of locking 1α-OH of vitamin D compounds in axial orientation
A method of modifying or altering the structure of a 1α-hydroxylated vitamin D compound to increase its biological activity by altering the conformational equilibrium of the A-ring to favor a chair conformation that presents the 1α-hydroxyl in the axial orientatio...
08/22/2006
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