NOG

13-BETA-ETHYL-17-ALPHA-ETHYNYL-17-BETA-HYDROXYGON-4-EN-3-ONE

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is present as a standalone ligand in 2 entries

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Chemical Component Summary
Name	13-BETA-ETHYL-17-ALPHA-ETHYNYL-17-BETA-HYDROXYGON-4-EN-3-ONE
Synonyms	NORGESTREL
Identifiers	(8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one
Formula	C₂₁ H₂₈ O₂
Molecular Weight	312.446
Type	NON-POLYMER
Isomeric SMILES	CC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=CC(=O)CC[C@H]34
InChI	InChI=1S/C21H28O2/c1-3-20-11-9-17-16-8-6-15(22)13-14(16)5-7-18(17)19(20)10-12-21(20,23)4-2/h2,13,16-19,23H,3,5-12H2,1H3/t16-,17+,18+,19-,20-,21-/m0/s1
InChIKey	WWYNJERNGUHSAO-XUDSTZEESA-N

Chemical Details
Formal Charge	0
Atom Count	51
Chiral Atom Count	6
Bond Count	54
Aromatic Bond Count	0

Drug Info: DrugBank

DrugBank ID	DB00367
Name	Levonorgestrel
Groups	approved investigational
Description	Levonorgestrel (LNG) is a synthetic progestogen similar to [Progesterone] used in contraception and hormone therapy.[A181988,T659] Also known as Plan B, it is used as a single agent in emergency contraception, and as a hormonal contraceptive released from an intrauterine device, commonly referred to as an IUD. Some of these devices are known as Jaydess, Kyleena, and Mirena. A subdermal implant of levonorgestrel that slowly releases the hormone over a long-term period is also available.[L7823] In addition to the above uses, levonorgestrel is used as a component of long-term combination contraceptives.[A181991,L7760,L7778] Globally, levonorgestrel is the most commonly used emergency contraceptive. It was initially granted FDA approval in 1982 and was the first emergency contraceptive containing only progesterone, showing high levels of efficacy and a lack of estrogenic adverse effects when compared to older emergency contraceptive regimens.[A181976,A181994,L7760]
Synonyms	Levonorgestrel 17alpha-Ethynyl-18-homo-19-nortestosterone 18-Methylnorethisterone 13-Ethyl-17-alpha-ethynylgon-4-en-17-beta-ol-3-one 17alpha-Ethynyl-17-hydroxy-18-methylestr-4-en-3-one 18-Methyl-17-alpha-ethynyl-19-nortestosterone (8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy- 1,2,6,7,8,9,10,11,12,13,14,15,16, 17- tetradecahydrocyclopenta[a] phenanthren-3-one 17alpha-Ethynyl-13beta-ethyl-3-oxo-4-estren-17beta-ol (-)-13-Ethyl-17-hydroxy-18,19-dinor-17alpha-pregn-4-en-20-yn-3-one 13-beta-Ethyl-17alpha-ethynyl-17beta-hydroxygon-4-en-3-one Lèvonorgestrel 17-alpha-Ethynyl-13-ethyl-19-nortestosterone Levonorgestrelum 17-Ethynyl-18-methyl-19-nortestosterone 13-Ethyl-17-alpha-ethynyl-17-beta-hydroxy-4-gonen-3-one 17-alpha-Ethinyl-13-beta-ethyl-17-beta-hydroxy-4-estren-3-one d(-)-Norgestrel
Brand Names	Curae Basic Care Levonorgestrel Fem Choice morning after Alysena 28 Take Action Seasonale Aviane 28 PostDay One-Step Esme 28 Jolessa Aubra Iclevia Balcoltra Athentia Next Aviane 28 Day Levonorgestrel Tablet, 1.5 mg Levonorgestrel Joyeaux BionaFem Amethia Teva-levonorgestrel Stix Restart Daysee Chateal AfterPill Norlevo Setlakin Kyleena Norplant System Kit 36mg/implant LoSeasonique Min-ovral 28 Tab Levonorgestrel and Ethinyl Estradiol LoJaimiess Seasonique Empowered Choice Preven Emergency Contraceptive Min-ovral 28 Her Style Fayosim Chateal EQ Levonorgestrel and Ethinyl Estradiol and Ethinyl Estradiol Min-ovral 21 Twirla React Amethia Lo Orsythia Rivelsa Lutera Afirmelle Lo Simpesse Skyla Kurvelo Lutera 28 Triquilar 21 SheWise Levlite Nordette Aftera Levora Next Choice One Dose Ovima 21 Triphasil 21 Tab Vienva TM Levonorgestrel Tablets, 0.75mg Climara Pro Delyla Esme 21 Minivlar 30 Lybrel Portia 21 Altavera Aubra EQ camrese Lo Alesse 21 EContra One-Step Aviane 21 Min-ovral 21 Tab Backup Plan Alysena 21 Fallback Solo Laylaa 21 Trivora Triphasil-21 Tyblume Ashlyna Sronyx Lessina Introvale Contingency One Lutera 21 EContra EZ Laylaa 28 Opcicon One-Step Ayuna Jaimiess Ovima 28 Quasense Portia Ithappenz Morning After Camrese Marlissa Triquilar 28 Backup Plan Onestep Amethyst Indayo Preven Tablets AfterPlan Portia 28 Audrina 21 Alesse 28 Myzilra Emergency Contraceptive Optionelle Triphasil 21 Levonest Morning After Pill Triphasil 28 Tab Dolishale Falmina Next Choice LEADER Emergency Contraceptive Levonorgestrel Falessa Jaydess Plan B One-Step Quartette Her style Simpesse Plan B My Way Audrina 28 Larissia Morning After Liletta Preventeza Mirena Levonorgestrel Emergency Contraceptive Vienva My Choice TM New Day Econ Morning After Levonorgetsrel and Ethinyl Estradiol Contingency Aviane Levonorgestrel and Ethinyl Estradoil Option 2 Julie Enpresse Triphasil 28 After Banger Quaterna Lillow
Indication	Emergency contraception Levonorgestrel, in the single-agent emergency contraceptive form, is indicated for the prevention of pregnancy after the confirmed or suspected failure of contraception methods or following unprotected intercourse. It is distributed by prescription for patients under 17, and over the counter for those above this age.[L7760] This levonorgestrel-only form of contraception is not indicated for regular contraception and must be taken as soon as possible within 72 hours after intercourse.[A181976,L7760] It has shown a lower efficacy when it is used off label within 96 hours.[T659] Long-term contraception or nonemergency contraception In addition to the above indication in emergency contraception, levonorgestrel is combined with other contraceptives in contraceptive formulations designed for regular use, for example with ethinyl estradiol.[L7766] It is used in various hormone-releasing intrauterine devices for long-term contraception ranging for a duration of 3-5 years.[L7778,L7781,L7787] Product labeling for Mirena specifically mentions that it is recommended in women who have had at least 1 child and can be indicated for the prevention of pregnancy for up to 8 years.[L7778,L42950] A subdermal implant is also available for the prevention of pregnancy for up to 5 years.[L7823] Hormone therapy and off-label uses Levonorgestrel is prescribed in combination with estradiol as hormone therapy during menopause to manage vasomotor symptoms and to prevent osteoporosis.[L7805]Off-label, levonorgestrel may be used to treat menorrhagia, endometrial hyperplasia, and endometriosis.[T659]
Categories	Adrenal Cortex Hormones Combination Contraceptives (with Estrogen and derivatives) Contraceptive Agents, Female Contraceptive Agents, Hormonal Contraceptives, Oral Contraceptives, Oral, Synthetic Contraceptives, Postcoital Cytochrome P-450 CYP3A Substrates Cytochrome P-450 CYP3A4 Substrates Cytochrome P-450 CYP3A5 Substrates Cytochrome P-450 Substrates Fused-Ring Compounds Genito Urinary System and Sex Hormones Hormonal Contraceptives for Systemic Use Hyperglycemia-Associated Agents Inhibit Ovum Fertilization Norpregnanes Norpregnenes Norsteroids Progestin Contraceptives Progestin-containing Intrauterine Device Progestins Progestogens and Estrogens, Sequential Preparations Reproductive Control Agents Sex Hormones and Modulators of the Genital System Steroids
ATC-Code	G03AB03 G03AD01 G03AC03 G03FB09 G03AA07 G03FA11
CAS number	797-63-7

Drug Targets

Name	Target Sequence	Pharmacological Action	Actions
Progesterone receptor	MTELKAKGPRAPHVAGGPPSPEVGSPLLCRPAAGPFPGSQTSDTLPEVSA...	unknown	modulator
3-oxo-5-alpha-steroid 4-dehydrogenase 1	MATATGVAEERLLAALAYLQCAVGCAVFARNRQTNSVYGRHALPSHRLRV...	unknown	inhibitor
Estrogen receptor alpha	MTMTLHTKASGMALLHQIQGNELEPLNRPQLKIPLERPLGEVYLDSSKPA...	unknown	other/unknown
Androgen receptor	MEVQLGLGRVYPRPPSKTYRGAFQNLFQSVREVIQNPGPRHPEAASAAPP...	unknown	binder
Sex hormone-binding globulin	MESRGPLATSRLLLLLLLLLLRHTRQGWALRPVLPTQSAHDPPAVHLSNG...	unknown	inhibitor,binder
Glucocorticoid receptor	MDSKESLTPGREENPSSVLAQERGDVMDFYKTLRGGATVKVSASSPSLAV...	unknown	binder
Cytochrome P450 3A5	MDLIPNLAVETWLLLAVSLVLLYLYGTRTHGLFKRLGIPGPTPLPLLGNV...	unknown	substrate
Cytochrome P450 3A4	MALIPDLAMETWLLLAVSLVLLYLYGTHSHGLFKKLGIPGPTPLPFLGNI...	unknown	substrate
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Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682