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1. 发明授权

US5387724A Selective hydroxylation of phenol or phenolic ethers 失效
标题翻译：苯酚或酚醚的选择性羟基化
公开(公告)号：US5387724A
公开(公告)日：1995-02-07
申请号：US133110
申请日：1993-10-12
申请人： Alexander Johnstone , William R. Sanderson , Robert C. Wasson
发明人： Alexander Johnstone , William R. Sanderson , Robert C. Wasson
IPC分类号： B01J27/16 , C01B25/37 , C07C37/60 , B01J31/00
CPC分类号： C01B25/372 , B01J27/16 , C07C37/60 , C07C41/26
摘要： Phenols, and related aromatic compounds, phenolic ethers, can be hydroxylated selectively using hydrogen peroxide in the presence of an amorphous or microcrystalline zirconium phosphate catalyst in a solvent containing an aliphatic carboxylic acid. The process is particularly suitable for phenol itself, and advantageously employs a partially dehydrated microcrystalline catalyst obtained by heating an hydrated microcrystalline zirconium phosphate for example at about 100.degree. C. A convenient reaction temperature is 50.degree. to 90.degree. C., and convenient solvent is acetic acid. In an improved method of producing the catalyst, zirconium phosphate is precipitated from an aqueous phosphoric acid solution of zirconium oxychloride in the presence of a cationic phase transfer agent such as an alkylpyridinium salt or tetraalkylquaternary ammonium salt or a nonionic surfactant such as an alcohol ethoxylate.
摘要翻译： PCT No.PCT / GB92 / 00639 Sec。 371日期：1993年10月12日 102（e）日期1993年10月12日PCT提交1992年4月9日PCT公布。第WO92 / 18449号公报日期：1992年10月29日。苯酚和相关芳族化合物酚醚可以在含有脂族羧酸的溶剂中，在无定形或微晶磷酸锆催化剂存在下使用过氧化氢选择性羟基化。该方法特别适用于苯酚本身，并且有利地采用例如在约100℃下加热水合微晶磷酸锆获得的部分脱水的微晶催化剂。方便的反应温度为50-90℃，方便的溶剂为醋酸。在制备催化剂的改进方法中，在阳离子相转移剂如烷基吡啶鎓盐或四烷基季铵盐或非离子表面活性剂如醇乙氧基化物的存在下，从磷酸锆的水溶液中沉淀出磷酸锆。

2. 发明授权

US5169950A Processes for preparing phenolic benzothiazole derivatives 失效
标题翻译：酚类苯并噻唑衍生物的制备方法
公开(公告)号：US5169950A
公开(公告)日：1992-12-08
申请号：US747032
申请日：1991-08-19
申请人： Adalbert Braig , Hans-Rudolf Meier , David G. Leppard , Robert C. Wasson , Emyr Phillips
发明人： Adalbert Braig , Hans-Rudolf Meier , David G. Leppard , Robert C. Wasson , Emyr Phillips
IPC分类号： C07D277/70 , C07D277/72 , C08K5/46 , C09D5/08 , C09K15/30 , C10M135/36
CPC分类号： C07D277/70 , C07D277/72 , C08K5/46 , C09D5/086 , C09K15/30 , C10M135/36 , C10M2207/16 , C10M2219/10 , C10M2219/102 , C10M2219/104 , C10M2219/106 , C10M2223/045 , C10N2210/02 , C10N2230/12
摘要： Compounds of the formula I ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3, and R.sup.5 have the meaning given in claim 1 are formed by thermal rearrangement of the isomers of formula V ##STR2## especially in the presence of basic catalysts. The compounds are corrosion inhibitors for organic materials, in particular coating materials and lubricants. In these substrates they also act as antioxidants and light-stabilizers and are very stable to heat.
摘要翻译：其中R，R 1，R 2，R 3和R 5具有权利要求1中给出的含义的式I化合物（I）通过式V（V）的异构体的热重排形成，特别是在存在下的碱性催化剂。这些化合物是有机材料的腐蚀抑制剂，特别是涂料和润滑剂。在这些基材中，它们也起到抗氧化剂和光稳定剂的作用，对热量非常稳定。

3. 发明授权

US6034205A Thermoplastic polymers 失效
标题翻译：热塑性聚合物
公开(公告)号：US6034205A
公开(公告)日：2000-03-07
申请号：US120847
申请日：1998-07-23
申请人： Amanda J. Dutton , Robert C. Wasson
发明人： Amanda J. Dutton , Robert C. Wasson
IPC分类号： G09B19/10 , A63H33/00 , B44C3/04 , C08G63/06 , C08G63/08 , C08G63/82 , C08L67/04
CPC分类号： B44C3/04 , A63H33/001 , C08G63/08 , C08G63/823
摘要： Products intended for use as hand mouldable materials should meet the objectives of not causing pain to the user when held in the hand, and retaining malleability for a sufficient but not excessive length of time.The invention hand-mouldable compositions comprise selected copolymers of lactones and lactides which manifest a melt temperature T.sub.m in the range of from 48 to 58.degree. C. and a crystallisation temperature T.sub.c in the range of from 16 to 30.degree. C. They are preferably produced from .epsilon. caprolactone and L-lactide, most desirably in a weight ratio of from 94:6 to 91:9, and especially at a reaction temperature in the range of from 150 to 190.degree. C. They are often coloured and can be employed in kits.
摘要翻译：旨在用作手工模制材料的产品应达到当握持在手中时不会对使用者造成疼痛的目的，并且保持可延展性足够但不会过长的时间。本发明的可手工成型的组合物包含内酯和丙交酯的选择性共聚物，其表现出熔点温度T m为48至58℃，结晶温度Tc为16-30℃。优选制备来自ε己内酯和L-丙交酯，最优选以94:6至91:9的重量比，特别是在150至190℃的反应温度下。它们通常是着色的并且可以用于工具包

4. 发明授权

US5190723A Process for inhibiting corrosion 失效
标题翻译：抑制腐蚀的工艺
公开(公告)号：US5190723A
公开(公告)日：1993-03-02
申请号：US622133
申请日：1990-12-03
申请人： Emyr Phillips , Robert C. Wasson
发明人： Emyr Phillips , Robert C. Wasson
IPC分类号： C07C323/29 , C09D5/08 , C10M133/38 , C10M135/20 , C10M135/24 , C10M135/26 , C10M135/34 , C10M135/36 , C23F11/14 , C23F11/16
CPC分类号： C07C323/29 , C09D5/086 , C10M133/38 , C10M135/20 , C10M135/24 , C10M135/26 , C10M135/34 , C10M135/36 , C23F11/149 , C23F11/16 , C23F11/162 , C23F11/165 , C10M2215/22 , C10M2215/221 , C10M2215/225 , C10M2215/226 , C10M2215/30 , C10M2219/085 , C10M2219/09 , C10M2219/10 , C10M2219/102 , C10M2219/104 , C10M2219/106 , C10N2230/12
摘要： A process for inhibiting corrosion involves new compositions which comprise an organic material and, a corrosion inhibitor which is a compound having the formula: ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each is hydrogen, C.sub.1 -C.sub.15 alkyl, C.sub.3 -C.sub.15 alkenyl, C.sub.7 -C.sub.10 phenylalkyl, C.sub.6 -C.sub.18 aryl having 6 or 10 aromatic ring carbon atoms; or C.sub.5 -C.sub.12 cycloalkyl;R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl; n is 0 or 1;A is a residue of a heterocyclic ring having 5-7 ring members and 1-4 nitrogen atoms, or A is a residue of a heterocyclic ring having 5-7 ring members and 1-4 nitrogen atoms and is fused to a further heterocyclic ring or to a carbocyclic ring, or A is a carbocyclic ring, in particular a phenyl or naphthyl ring, and wherein R is one or more of hydrogen, C.sub.1 -C.sub.15 alkyl, C.sub.1 -C.sub.4 halogenoalkyl, C.sub.1 -C.sub.12 alkoxy, C.sub.1 -C.sub.12 alkylthio, phenylthio, benzylthio, C.sub.1 -C.sub.12 alkylsulphonyl, phenyl, C.sub.7 -C.sub.15 alkylphenyl, C.sub.7 -C.sub.10 phenylalkyl, C.sub.5 -C.sub.8 cycloalkyl, halogen, NO.sub.2, CN, COOH, COO(C.sub.1 -C.sub.12 alkyl), OH, NH.sub.2, CONH.sub.2, NHR.sup.4, N(R.sup.4).sub.2, (CONH(R.sup.4) or --CON(R.sup.4).sub.2 wherein R.sup.4 is C.sub.1 -C.sub.12 alkyl, C.sub.3 -C.sub.12 alkyl which is interrupted by one or more O-atoms, C.sub.5 -C.sub.8 cycloalkyl, benzyl, phenyl or phenyl which is substituted by halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or NO.sub.2, or N(R.sup.4) .sub.2 is a pyrrolidino, piperidino or morpholine group; provided that i) A is not benzothiazole residue; and ii) when A is a carbocyclic ring and n is 1, A is not 3,5-di-t-butyl-4-hydroxyphenyl and, when n is 1 and A is phenyl substituted by alkyl, R.sub.1 and R.sub.2 are not both t-butyl.
摘要翻译：抑制腐蚀的方法涉及包含有机材料的新组合物，以及具有下式的化合物的腐蚀抑制剂：其中R 1和R 2可以相同或不同，各自为氢，C 1 -C 15烷基， C15烯基，C7-C10苯基烷基，具有6或10个芳香环碳原子的C6-C18芳基; 或C 5 -C 12环烷基; R3是氢或C1-C4烷基; n为0或1; A是具有5-7个环成员和1-4个氮原子的杂环的残基，或A是具有5-7个环成员和1-4个氮原子的杂环的残基，并与另一个杂环稠合或碳环，或A是碳环，特别是苯基或萘基环，其中R是氢，C 1 -C 15烷基，C 1 -C 4卤代烷基，C 1 -C 12烷氧基，C 1 -C 12烷硫基，苯硫基，苄硫基中的一个或多个，C 1 -C 12烷基磺酰基，苯基，C 7 -C 15烷基苯基，C 7 -C 10苯基烷基，C 5 -C 8环烷基，卤素，NO 2，CN，COOH，COO（C 1 -C 12烷基），OH，NH 2，CONH 2，NHR 4，N（R 4）2，（CONH （R4）或-CON（R4）2，其中R4是C1-C12烷基，被一个或多个O原子间隔的C 3 -C 12烷基，C 5 -C 8环烷基，苄基，苯基或被卤素取代的苯基，C 1 -C 4烷基， C1-C4烷氧基或NO2，或N（R4）2是吡咯烷子基，哌啶子基或吗啉基团;条件是i）A不是苯并噻唑残基; 和ii）当A是碳环并且n是1时，A不是3,5-二叔丁基-4-羟基苯基，当n是1且A是被烷基取代的苯基时，R 1和R 2都不是叔丁基。

5. 发明授权

US5128396A Coating compositions containing water-insoluble salts of keto-acids 失效
标题翻译：含有水不溶性水的KETO-ACAT的涂料组合物
公开(公告)号：US5128396A
公开(公告)日：1992-07-07
申请号：US561557
申请日：1990-08-01
申请人： Robert M. O'Neil , Emyr Phillips , Robert C. Wasson
发明人： Robert M. O'Neil , Emyr Phillips , Robert C. Wasson
IPC分类号： C07C51/41 , C07C59/84 , C09D5/08 , C09D201/00
CPC分类号： C09D5/086 , C07C59/84
摘要： The present invention provides coating compositions comprisinga) an organic film-forming binder; andb) a corrosion-inhibiting amount of a salt ofi) a ketoacid having the formula (I): ##STR1## wherein a is 1,2,3,4 or 5; the R substituents are the same or different and each is hydrogen; halogen; nitro; cyano; CF.sub.3 ; C.sub.1 -C.sub.15 alkyl; C.sub.5 -C.sub.12 cycloalkyl; C.sub.2 -C.sub.15 alkenyl; C.sub.1 -C.sub.12 halogenoalkyl; C.sub.1 -C.sub.12 alkoxy; C.sub.1 -C.sub.12 thioalkyl; C.sub.6 -C.sub.12 aryl; C.sub.6 -C.sub.10 aryloxy; C.sub.7 -C.sub.12 alkaryl; --CO.sub.2 R.sub.1 in which R.sub.1 is a) hydrogen, b) C.sub.1 -C.sub.20 alkyl optionally interrupted by one or more O--, N-- or S--atoms, c) C.sub.7 -C.sub.12 alkaryl or d) C.sub.6 -C.sub.12 aryl optionally substituted with one or more carboxy groups; --COR.sub.1 in which R.sub.1 has its previous significance; NR.sub.2 R.sub.3 in which R.sub.2 and R.sub.3 are the same or different and each is hydrogen or C.sub.1 -C.sub.24 alkyl optionally interrupted by one or more O,S or NH moieties; or when a is 2, 3, 4 or 5, two adjacent groups R may be the atoms required to form a fused benzene or cyclohexyl ring; and n is an integer from 1 to 10; andii) an amine of formula II: ##STR2## wherein X, Y and Z are the same or different, and are hydrogen; C.sub.4 -C.sub.24 alkyl optionally interrupted by one or more O-atoms; phenyl; C.sub.7 -C.sub.9 phenylalkyl; C.sub.7 -C.sub.9 alkylphenyl; or two of X, Y and Z together with the N-atom to which they are attached from a 5- , 6- or 7-membered heterocyclic residue, which optionally contains a further oxygen, nitrogen or sulphur atom and which is optionally substituted by one or more C.sub.1 -C.sub.4 alkyl, amino, hydroxy, carboxy or C.sub.1 -C.sub.4 carboxy alkyl groups, and the other of X, Y and Z is hydrogen; provided that X, Y and Z are not simultaneously hydrogen.The salts derived from ketoacids of Formula I and amines of Formula II are new compounds.
摘要翻译：本发明提供涂料组合物，其包含a）有机成膜粘合剂; 和b）防腐蚀量的i）具有式（I）的酮酸：其中a为1,2,3,4或5; R取代基相同或不同，各自为氢; 卤素; 硝基氰基; CF3; C 1 -C 15烷基; C5-C12环烷基; C 2 -C 15烯基; C1-C12卤代烷基; C1-C12烷氧基; C1-C12硫代烷基; C6-C12芳基; C6-C10芳氧基; C7-C12烷芳基; -CO 2 R 1，其中R 1是a）氢，b）任选被一个或多个O-，N-或S-原子中断的C 1 -C 20烷基，c）C 7 -C 12烷芳基或d）任选被一个或多个更多的羧基; -COR1，其中R1具有其先前的意义; NR2R3，其中R2和R3相同或不同，并且各自为氢或任选地被一个或多个O，S或NH部分中断的C 1 -C 24烷基; 或当a为2,3,4或5时，两个相邻基团R可以是形成稠合苯或环己基所需的原子; n为1〜10的整数，和ii）式II的胺：其中X，Y和Z相同或不同，并且是氢; 任选被一个或多个O原子中断的C 4 -C 24烷基; 苯基; C7-C9苯基烷基; C7-C9烷基苯基; 或者两个X，Y和Z与它们所连接的N-原子一起形成5-，6-或7-元杂环残基，其任选地含有另外的氧，氮或硫原子，并且其任选地被一个或多个C 1 -C 4烷基，氨基，羟基，羧基或C 1 -C 4羧基烷基，X，Y和Z中的另一个是氢; 条件是X，Y和Z不同时为氢。衍生自式I的酮酸和式II的胺的盐是新的化合物。

6. 发明授权

US5097039A Phenolic benzothiazole derivatives and their use as corrosion inhibitors 失效
标题翻译：苯酚苯并噻唑衍生物及其作为腐蚀抑制剂的用途
公开(公告)号：US5097039A
公开(公告)日：1992-03-17
申请号：US393612
申请日：1989-08-14
申请人： Adalbert Braig , Hans-Rudolf Meier , David G. Leppard , Robert C. Wasson , Emyr Phillips
发明人： Adalbert Braig , Hans-Rudolf Meier , David G. Leppard , Robert C. Wasson , Emyr Phillips
IPC分类号： B62D25/18
CPC分类号： B62D25/188
摘要： Compounds of the formula I ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meaning given in claim 1 are formed by thermal rearrangement of the isomers of formula V ##STR2## especially in the presence of basic catalysts. The compounds are corrosion inhibitors for organic materials, in particular coating materials and lubricants. In these substrates they also act as antioxidants and light-stabilizers and are very stable to heat.
摘要翻译：其中R，R 1，R 2，R 3，R 4和R 5具有权利要求1中给出的含义的式I化合物（I）通过式V（V）异构体的热重排形成，特别是在存在碱性催化剂。这些化合物是有机材料的腐蚀抑制剂，特别是涂料和润滑剂。在这些基材中，它们也起到抗氧化剂和光稳定剂的作用，对热量非常稳定。

7. 发明授权

US5069805A Phenolic benzothiazole derivatives and their use as corrosion inhibitors 失效
标题翻译：苯酚苯并噻唑衍生物及其作为腐蚀抑制剂的用途
公开(公告)号：US5069805A
公开(公告)日：1991-12-03
申请号：US583775
申请日：1990-09-14
申请人： Adalbert Braig , Hans-Rudolf Meier , David G. Leppard , Robert C. Wasson , Emyr Phillips
发明人： Adalbert Braig , Hans-Rudolf Meier , David G. Leppard , Robert C. Wasson , Emyr Phillips
IPC分类号： C07D277/70 , C07D277/72 , C07D417/06 , C08K5/46 , C09D5/08 , C09D181/00 , C09K15/30 , C10M135/36 , C10N30/10 , C10N30/12
CPC分类号： C07D277/70 , C07D277/72 , C08K5/46 , C09D5/086 , C09K15/30 , C10M135/36 , C10M2207/16 , C10M2219/10 , C10M2219/102 , C10M2219/104 , C10M2219/106 , C10M2223/045 , C10N2210/02 , C10N2230/12
摘要： Compounds of the formula I ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meaning given in claim 1 are formed by thermal rearrangement of the isomers of formula V ##STR2## especially in the presence of basic catalysts. The compounds are corrosion inhibitors for organic materials, in particular coating materials and lubricants. In these substrates they also act as antioxidants and light-stabilizers and are very stable to heat.

8. 发明授权

US4894091A Phenolic benzothiazole derivatives and their use as corrosion inhibitors 失效
标题翻译：酚苯并噻唑衍生物及其作为腐蚀抑制剂的用途
公开(公告)号：US4894091A
公开(公告)日：1990-01-16
申请号：US86337
申请日：1987-08-17
申请人： Adalbert Braig , Hans-Rudolf Meier , David G. Leppard , Robert C. Wasson , Emyr Phillips
发明人： Adalbert Braig , Hans-Rudolf Meier , David G. Leppard , Robert C. Wasson , Emyr Phillips
IPC分类号： C07D277/70 , C07D277/72 , C07D417/06 , C08K5/46 , C09D5/08 , C09D181/00 , C09K15/30 , C10M135/36 , C10N30/10 , C10N30/12
CPC分类号： C07D277/70 , C07D277/72 , C08K5/46 , C09D5/086 , C09K15/30 , C10M135/36 , C10M2207/16 , C10M2219/10 , C10M2219/102 , C10M2219/104 , C10M2219/106 , C10M2223/045 , C10N2210/02 , C10N2230/12
摘要： Compounds of the formula I ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meaning given in claim 1 are formed by thermal rearrangement of the isomers of formula V ##STR2## especially in the presence of basic catalysts. The compounds are corrosion inhibitors for organic materials, in particular coating materials and lubricants. In these substrates they also act as antioxidants and light-stabilizers and are very stable to heat.
摘要翻译：其中R，R 1，R 2，R 3，R 4和R 5具有权利要求1中给出的含义的式I化合物（I）通过式V（V）异构体的热重排形成，特别是在存在碱性催化剂。这些化合物是有机材料的腐蚀抑制剂，特别是涂料和润滑剂。在这些基材中，它们也起到抗氧化剂和光稳定剂的作用，对热量非常稳定。

9. 发明授权

US5183842A Method of producing an organic, corrosion-resistant surface coating 失效
标题翻译：生产有机，耐腐蚀表面涂层的方法
公开(公告)号：US5183842A
公开(公告)日：1993-02-02
申请号：US872743
申请日：1992-04-22
申请人： Robert M. O'Neil , Emyr Phillips , Robert C. Wasson
发明人： Robert M. O'Neil , Emyr Phillips , Robert C. Wasson
IPC分类号： C07C59/84 , C09D5/08
CPC分类号： C09D5/086 , C07C59/84
摘要： The present invention provides coating compositions comprisinga) an organic film-forming binder; andb) a corrosion-inhibiting amount of a salt ofi) a ketoacid having the formula (I): ##STR1## wherein a is 1,2,3,4 or 5; the R substituents are the same or different and each is hydrogen; halogen; nitro; cyano; CF.sub.3 ; C.sub.1 -C.sub.15 alkyl; C.sub.5 -C.sub.12 cycloalkyl; C.sub.2 -C.sub.15 alkenyl; C.sub.1 -C.sub.12 halogenoalkyl; C.sub.1 -C.sub.12 alkoxy; C.sub.1 -C.sub.12 thioalkyl; C.sub.6 -C.sub.12 aryl; C.sub.6 -C.sub.10 aryloxy; C.sub.7 -C.sub.12 alkaryl; --CO.sub.2 R.sub.1 in which R.sub.1 is a) hydrogen, b) C.sub.1 -C.sub.20 alkyl optionally interrupted by one or more O-, N- or S-atoms, c) C.sub.7 -C.sub.12 alkaryl or d) C.sub.6 -C.sub.12 aryl optionally substituted with one or more carboxy groups; --COR.sub.1 in which R.sub.1 has its previous significance; NR.sub.2 R.sub.3 in which R.sub.2 and R.sub.3 are the same or different and each is hydrogen or C.sub.1 -C.sub.24 alkyl optionally interrupted by one or more O, S or NH moieties; or when a is 2, 3, 4 or 5, two adjacent groups R may be the atoms required to form a fused benzene or cyclohexyl ring; and n is an integer from 1 to 10; andii) an amine of formula II: ##STR2## wherein X, Y and Z are the same or different, and are hydrogen; C.sub.4 -C.sub.24 alkyl optionally interrupted by one or more O-atoms; phenyl; C.sub.7 -C.sub.9 phenylalkyl; C.sub.7 -C.sub.9 alkylphenyl; or two of X, Y and Z together with the N-atom to which they are attached form a 5-, 6- or 7-membered heterocyclic residue, which optionally contains a further oxygen, nitrogen or sulphur atom and which is optionally substituted by one or more C.sub.1 -C.sub.4 alkyl, amino, hydroxy, carboxy or C.sub.1 -C.sub.4 carboxy alkyl groups, and the other of X, Y and Z is hydrogen; provided that X, Y and Z are not simultaneously hydrogen.The salts derived from ketoacids of formula I and amines of formula II are new compounds.
摘要翻译：本发明提供涂料组合物，其包含a）有机成膜粘合剂; 和b）防腐蚀量的i）具有式（I）的酮酸：其中a为1,2,3,4或5; R取代基相同或不同，各自为氢; 卤素; 硝基氰基; CF3; C 1 -C 15烷基; C5-C12环烷基; C 2 -C 15烯基; C1-C12卤代烷基; C1-C12烷氧基; C1-C12硫代烷基; C6-C12芳基; C6-C10芳氧基; C7-C12烷芳基; -CO 2 R 1，其中R 1是a）氢，b）任选被一个或多个O-，N-或S-原子中断的C 1 -C 20烷基，c）C 7 -C 12烷芳基或d）任选被一个或多个更多的羧基; -COR1，其中R1具有其先前的意义; NR2R3，其中R2和R3相同或不同，并且各自为氢或任选地被一个或多个O，S或NH部分中断的C 1 -C 24烷基; 或当a为2,3,4或5时，两个相邻基团R可以是形成稠合苯或环己基所需的原子; n为1〜10的整数，和ii）式II的胺：其中X，Y和Z相同或不同，并且是氢; 任选被一个或多个O原子中断的C 4 -C 24烷基; 苯基; C7-C9苯基烷基; C7-C9烷基苯基; 或X，Y和Z中的两个与它们所连接的N-原子一起形成5-，6-或7-元杂环残基，其任选地含有另外的氧，氮或硫原子，并且其任选地被一个或多个C 1 -C 4烷基，氨基，羟基，羧基或C 1 -C 4羧基烷基，X，Y和Z中的另一个是氢; 条件是X，Y和Z不同时为氢。衍生自式I的酮酸和式II的胺的盐是新的化合物。

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