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公开(公告)号:US4584377A
公开(公告)日:1986-04-22
申请号:US639113
申请日:1984-08-09
申请人: Koichi Yokoi , Hiroshi Hasegawa , Tadashi Narita , Takemitsu Asaoka , Kenichi Kukita , Seiji Ishizeki , Toshiaki Nakashima
发明人: Koichi Yokoi , Hiroshi Hasegawa , Tadashi Narita , Takemitsu Asaoka , Kenichi Kukita , Seiji Ishizeki , Toshiaki Nakashima
IPC分类号: C07D221/20 , C07D221/18
CPC分类号: C07D221/20
摘要: Disclosed herein are Fredericamycin A derivatives, each, represented by the following general formula (I): ##STR1## wherein R means a hydrogen atom or acyl group, A denotes ##STR2## and dotted bonds are optional, with a proviso that when A is ##STR3## or the dotted bonds are contained, R is other than hydrogen atom. They have excellent antibacterial and antitumor activities and at the same time, are extremely stable compared with Fredericamycin A.
摘要翻译: 本文公开的是由以下通式(I)表示的弗雷德里霉素A衍生物:其中R表示氢原子或酰基,A表示“IMAGE”,虚线键是任选的,条件是 当A为
或包含点状键时,R不为氢原子。 它们具有优异的抗菌和抗肿瘤活性,同时与弗雷德霉素A相比非常稳定。 -
公开(公告)号:US4835287A
公开(公告)日:1989-05-30
申请号:US75616
申请日:1987-07-20
申请人: Katsuhiko Nagaoka , Masaru Matsumoto , Koichi Yokoi , Junji Oono , Kenichi Kukita , Toshiaki Nakashima
发明人: Katsuhiko Nagaoka , Masaru Matsumoto , Koichi Yokoi , Junji Oono , Kenichi Kukita , Toshiaki Nakashima
IPC分类号: C07G11/00 , A61K31/396 , A61K31/40 , A61K35/74 , A61P31/04 , A61P35/00 , C07D487/04 , C07D487/08 , C12P1/06 , C12P17/18 , C12R1/465
CPC分类号: C07D487/08
摘要: A substance SS42227 represented by the following formula (I): ##STR1## in which X represents >CH.sub.2 or >C=CHOH. The substance has antimicrobial and antitumor activities, and thus is useful as a medicine.
摘要翻译: 由下式(I)表示的物质SS42227:其中X表示> CH2或> C = CHOH。 该物质具有抗菌和抗肿瘤活性,因此作为药物有用。
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公开(公告)号:US4849512A
公开(公告)日:1989-07-18
申请号:US177483
申请日:1988-04-01
申请人: Minoru Tokizawa , Mari Otsuka , Kazuhiko Irinoda , Seiji Ishizeki , Fumio Ishii , Kenichi Kukita , Hideaki Matsuda , Tatsuhiko Katori
发明人: Minoru Tokizawa , Mari Otsuka , Kazuhiko Irinoda , Seiji Ishizeki , Fumio Ishii , Kenichi Kukita , Hideaki Matsuda , Tatsuhiko Katori
摘要: Derivatives of 3-acylamino-3-deoxyallose represented by the following formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be hydrogen atoms, or R.sup.1 and R.sup.2, and R.sup.3 and R.sup.4 may be in combination an isopropylidene group, R.sup.5 represents a hydrogen atom or alkyl group, and R.sup.6 represents a hydrogen atom or acyl group, are disclosed. One of the typical compound 3-deoxy-3-(3-tetradecanoyloxytetradecanoylamino)-1,2:5,6-di-O-isopropylidene- .alpha.-D-allofuranose is prepared by reacting 3-tetradecanoyloxytetradecanoic acid and 3-amino-3-deoxy-1,2:5,6-di-O-isopropylidene-.alpha.-D-allofuranose in the presence of N,N'-dicyclohexylcarbodiimide, as a dehydrating agent. The compound has an excellent carcinostatic activity.
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公开(公告)号:US4684719A
公开(公告)日:1987-08-04
申请号:US734198
申请日:1985-05-15
IPC分类号: B01F17/42 , A61K31/70 , A61K31/7024 , A61K31/7028 , A61P31/04 , A61P35/00 , B01F17/56 , C07H13/06 , C07H15/18 , C07H13/02
CPC分类号: C07H13/06
摘要: Disclosed herein are novel .alpha.,.alpha.-trehalose fatty acid diester derivatives useful as carcinostatic substances and surface-activating materials and represented by the general formula (I): ##STR1## wherein R.sup.1 means an alkyl group having 1-21 carbon atoms, R.sup.2 denotes a hydrogen atom or carbobenzoxy group, and R.sup.3 stands for a hydrogen atom or benzyl group. Their preparation processes are also disclosed.
摘要翻译: 本文公开了可用作制癌物质和表面活化材料并由通式(I)表示的新型α,α-海藻糖脂肪酸二酯衍生物:其中R 1表示具有1-21个碳原子的烷基 R2表示氢原子或苄氧羰基,R3表示氢原子或苄基。 还公开了它们的制备方法。
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