| US3452030A
              (en)
            
            * | 1966-12-12 | 1969-06-24 | Aldrich Chem Co Inc The | 4-(n-isobutyrylanilino)-1-benzylpiperidine | 
        
          | DE2341965C3
              (de)
            
            * | 1973-08-20 | 1979-01-25 | C.H. Boehringer Sohn, 6507 Ingelheim | 4- [N- (o-PyridyD- N-acyl] -aminolphenäthylpiperidine, Verfahren zu deren Herstellung sowie deren Verwendung bei der Bekämpfung von Schmerzzuständen | 
        
          | US3998834A
              (en)
            
            * | 1975-03-14 | 1976-12-21 | Janssen Pharmaceutica N.V. | N-(4-piperidinyl)-n-phenylamides and -carbamates | 
        
          | US4198411A
              (en)
            
            * | 1976-08-12 | 1980-04-15 | Janssen Pharmaceutica N.V. | N-aryl-N-(1-L-4-piperidinyl)-arylaceytamides | 
        
          | US4584303A
              (en)
            
            * | 1984-04-09 | 1986-04-22 | The Boc Group, Inc. | N-aryl-N-(4-piperidinyl)amides and pharmaceutical compositions and method employing such compounds | 
        
          | US4791121A
              (en)
            
            * | 1987-11-02 | 1988-12-13 | The Boc Group, Inc. | 4-phenyl-4-(N-(phenyl)amido) piperidine derivatives and pharmaceutical compositions and method employing such compounds | 
        
          | US4921864A
              (en)
            
            * | 1987-11-02 | 1990-05-01 | Boc, Inc. | 4-Phenyl-4-(N-(phenyl)amido) piperidine derivatives and pharmaceutical compositions and method employing such compounds | 
        
          | US4849521A
              (en)
            
            * | 1987-11-02 | 1989-07-18 | Boc, Inc. | Stereoselective preparation of 3-substituted-4-piperidine compounds and derivatives | 
        
          | US4957929A
              (en)
            
            * | 1987-11-02 | 1990-09-18 | Boc, Inc. | 4-phenyl-4-[N-(phenyl)amido]piperidine compounds and pharmaceutical compositions employing such compounds | 
        
          | US5013742A
              (en)
            
            * | 1987-11-02 | 1991-05-07 | Boc, Inc. | 4-phenyl-4-N-(phenyl) amido piperidine derivatives and pharmaceutical compositions and method employing such compounds | 
        
          | USRE33495E
              (en)
            
            * | 1987-11-02 | 1990-12-18 | Boc, Inc. | Stereoselective preparation of 3-substituted-4-anilino-piperidine compounds and derivatives | 
        
          | US4801615A
              (en)
            
            * | 1987-12-31 | 1989-01-31 | The Boc Group, Inc. | 4-heterohexacyclic-4-(N-(phenyl)amido) piperidine derivatives and pharmaceutical compositions and method employing such compounds | 
        
          | US4791120A
              (en)
            
            * | 1987-12-31 | 1988-12-13 | The Boc Group, Inc. | 4-heteropentacyclic-4-[N-(phenyl)amino] piperidine derivatives and pharmaceutical compositions and method employing such compounds | 
        
          | US5019583A
              (en)
            
            * | 1989-02-15 | 1991-05-28 | Glaxo Inc. | N-phenyl-N-(4-piperidinyl)amides useful as analgesics | 
        
          | USRE34201E
              (en)
            
            * | 1989-04-20 | 1993-03-23 | Anaquest, Inc. | N-aryl-N-[4-(1-heterocyclicalkyl)piperidinyl]amides and pharmaceutical compositions and methods employing such compounds | 
        
          | KR900016129A
              (ko)
            
            * | 1989-04-20 | 1990-11-12 | 테리 아아르 커세트 | 4-알콕시알킬-4-아미노페닐피페리딘 및 그들의 유도체의 제조 방법 | 
        
          | US5053411A
              (en)
            
            * | 1989-04-20 | 1991-10-01 | Anaquest, Inc. | N-aryl-N-[4-(1-heterocyclicalkyl)piperidinyl]amides and pharmaceutical compositions and methods employing such compounds | 
        
          | US5145967A
              (en)
            
            * | 1989-04-20 | 1992-09-08 | Anaquest, Inc. | Method for preparing 4-alkoxyalkyl-4-phenylaminopiperdines and derivatives thereof | 
        
          | US4994471A
              (en)
            
            * | 1989-05-12 | 1991-02-19 | Boc, Inc. | N-aryl-N-(1-substituted-3-alkoxy-4-piperidinyl)amides and pharmaceutical compositions and methods employing such compounds | 
        
          | US4939161A
              (en)
            
            * | 1989-05-12 | 1990-07-03 | Boc, Inc. | Analgesic N-aryl-N-[1-substituted-3,5-dimethyl-4-piperidinyl]amides | 
        
          | US5100903A
              (en)
            
            * | 1989-05-12 | 1992-03-31 | Anaquest, Inc. | N-aryl-n-(1-substituted-3-alkoxy-4-piperidinyl)amides and pharmaceutical compositions and methods employing such compounds | 
        
          | US5214148A
              (en)
            
            * | 1990-12-18 | 1993-05-25 | Glaxo Inc. | Analgesic N-phenyl-N-(3-OR1 -3-ME-4-piperidinyl)amides | 
        
          | US5130321A
              (en)
            
            * | 1990-12-18 | 1992-07-14 | Glaxo Inc. | Analgesic n-phenyl-n-(3-or 1-3-me-4-piperidinyl)amides | 
        
          | GB9707934D0
              (en)
            
            * | 1997-04-18 | 1997-06-04 | Danbiosyst Uk | Improved delivery of drugs to mucosal surfaces | 
        
          | US7361666B2
              (en)
            
            * | 1999-05-25 | 2008-04-22 | Sepracor, Inc. | Heterocyclic analgesic compounds and methods of use thereof | 
        
          | US6677332B1
              (en) | 1999-05-25 | 2004-01-13 | Sepracor, Inc. | Heterocyclic analgesic compounds and methods of use thereof | 
        
          | US6635661B2
              (en) | 2000-05-25 | 2003-10-21 | Sepracor Inc. | Heterocyclic analgesic compounds and methods of use thereof | 
        
          | CA2436263A1
              (en)
            
            * | 2000-12-15 | 2002-06-20 | Astrazeneca Ab | New process for the preparation diaryl-4-amino-piperidinyl compounds | 
        
          | JP2005503425A
              (ja) | 2001-05-24 | 2005-02-03 | アレックザ  モレキュラー  デリヴァリー  コーポレイション | 所定の吸入ルートによる薬剤エステルの送出 | 
        
          | US7090830B2
              (en)
            
            * | 2001-05-24 | 2006-08-15 | Alexza Pharmaceuticals, Inc. | Drug condensation aerosols and kits | 
        
          | US20070122353A1
              (en)
            
            * | 2001-05-24 | 2007-05-31 | Hale Ron L | Drug condensation aerosols and kits | 
        
          | US7458374B2
              (en)
            
            * | 2002-05-13 | 2008-12-02 | Alexza Pharmaceuticals, Inc. | Method and apparatus for vaporizing a compound | 
        
          | US7585493B2
              (en) | 2001-05-24 | 2009-09-08 | Alexza Pharmaceuticals, Inc. | Thin-film drug delivery article and method of use | 
        
          | US7766013B2
              (en)
            
            * | 2001-06-05 | 2010-08-03 | Alexza Pharmaceuticals, Inc. | Aerosol generating method and device | 
        
          | US7645442B2
              (en) | 2001-05-24 | 2010-01-12 | Alexza Pharmaceuticals, Inc. | Rapid-heating drug delivery article and method of use | 
        
          | US7666876B2
              (en)
            
            * | 2002-03-19 | 2010-02-23 | Vernalis (R&D) Limited | Buprenorphine formulations for intranasal delivery | 
        
          | US7913688B2
              (en)
            
            * | 2002-11-27 | 2011-03-29 | Alexza Pharmaceuticals, Inc. | Inhalation device for producing a drug aerosol | 
        
          | GB0300531D0
              (en) | 2003-01-10 | 2003-02-12 | West Pharm Serv Drug Res Ltd | Pharmaceutical compositions | 
        
          | JP2007516149A
              (ja) | 2003-05-21 | 2007-06-21 | アレックザ  ファーマシューティカルズ,  インコーポレイテッド | 基板温度の均一性を制御する方法、および、内蔵式加熱ユニットおよびそれを使用する薬剤供給ユニット | 
        
          | AU2004287815B2
              (en)
            
            * | 2003-10-29 | 2009-05-28 | Mallinckrodt Inc. | Industrial method for separation and purification of fentanyl by reverse phase preparative chromatography | 
        
          | US7540286B2
              (en)
            
            * | 2004-06-03 | 2009-06-02 | Alexza Pharmaceuticals, Inc. | Multiple dose condensation aerosol devices and methods of forming condensation aerosols | 
        
          | WO2006022714A1
              (en)
            
            * | 2004-08-12 | 2006-03-02 | Alexza Pharmaceuticals, Inc. | Aerosol drug delivery device incorporating percussively activated heat packages | 
        
          | US20100006092A1
              (en)
            
            * | 2004-08-12 | 2010-01-14 | Alexza Pharmaceuticals, Inc. | Aerosol Drug Delivery Device Incorporating Percussively Activated Heat Packages | 
        
          | ES2289888B1
              (es)
            
            * | 2005-09-08 | 2008-12-16 | Consejo Superior Investig. Cientificas | Derivados de pirazolcarboxamida, su procedimiento de obtencion y sus aplicaciones como antagonistas/agonistas inversos del receptor cannabinoide cb1 y opioide mu. | 
        
          | JP2009515960A
              (ja)
            
            * | 2005-11-17 | 2009-04-16 | マリンクロッド・インコーポレイテッド | レミフェンタニルの合成方法 | 
        
          | WO2008112661A2
              (en) | 2007-03-09 | 2008-09-18 | Alexza Pharmaceuticals, Inc. | Heating unit for use in a drug delivery device | 
        
          | US9889239B2
              (en) | 2007-03-23 | 2018-02-13 | Allegiance Corporation | Fluid collection and disposal system and related methods | 
        
          | AU2008232360A1
              (en) | 2007-03-23 | 2008-10-02 | Allegiance Corporation | Fluid collection and disposal system having internchangeable collection and other features and methods relating thereof | 
        
          | EP2234972A1
              (en)
            
            * | 2007-12-19 | 2010-10-06 | NeuroSearch A/S | N-aryl-n-piperidin-4-yl-propionamide derivatives and their use as opioid receptor ligands | 
        
          | US8399677B2
              (en)
            
            * | 2008-03-19 | 2013-03-19 | Defence Research & Development Organisation | Method for the preparation of fentanyl | 
        
          | WO2010033540A1
              (en)
            
            * | 2008-09-19 | 2010-03-25 | Mallinckrodt Inc. | Crystalline forms of fentanyl alkaloid | 
        
          | EP3746138A4
              (en) | 2018-02-02 | 2021-11-03 | Alexza Pharmaceuticals, Inc. | ELECTRIC CONDENSING AEROSOL DEVICE |