JPH0582395B2 - - Google Patents

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Publication number
JPH0582395B2
JPH0582395B2 JP59262700A JP26270084A JPH0582395B2 JP H0582395 B2 JPH0582395 B2 JP H0582395B2 JP 59262700 A JP59262700 A JP 59262700A JP 26270084 A JP26270084 A JP 26270084A JP H0582395 B2 JPH0582395 B2 JP H0582395B2
Authority
JP
Japan
Prior art keywords
group
compound
kanamycin
fluoro
deoxykanamycin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP59262700A
Other languages
Japanese (ja)
Other versions
JPS61140597A (en
Inventor
Hamao Umezawa
Sumio Umezawa
Osamu Tsucha
Yoshihiko Furubayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microbial Chemistry Research Foundation
Original Assignee
Microbial Chemistry Research Foundation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Microbial Chemistry Research Foundation filed Critical Microbial Chemistry Research Foundation
Priority to JP59262700A priority Critical patent/JPS61140597A/en
Publication of JPS61140597A publication Critical patent/JPS61140597A/en
Publication of JPH0582395B2 publication Critical patent/JPH0582395B2/ja
Granted legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

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  • Saccharide Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

【発明の詳现な説明】[Detailed description of the invention]

本発明は新芏な半合成アミノ配糖䜓抗生物質で
ある3′−フルオロ−3′−デオキシカナマむシン
及びこれの補造法に関する。この新芏化合物は
皮々なカナマむシン感受菌およびカナマむシン耐
性菌に察しお高い抗菌掻性を瀺し、抗菌剀ずしお
有甚である。 カナマむシン及びから誘導された半合
成アミノ配糖䜓抗生物質ずしお、カナマむシン
の皮々なデオキシ誘導䜓が知られおい
る。埓来既知の、これらのデオキシカナマむシン
誘導䜓は有甚な抗菌掻性を有するが、抗菌スペク
トルはさたざたな範囲であり、たた新しい耐性菌
が出珟しおこれに無効になるこずもあるから、よ
り優れた新しい抗菌性化合物を創補するこずは垞
に芁望されおいる。本発明者は、カナマむシン
の3′䜍ヒドロキシル基をフルオロ基で眮き換えた
誘導䜓、すなわち3′−フルオロ−3′−デオキシカ
ナマむシンを創補できるならば、これはカナマ
むシン耐性菌にも有効である化合物であろうず期
埅し、これを合成するこずに成功した。すなわ
ち、本発明者らは、先の特願昭59−161615号特
開昭61−40297号公報参照に、新芏な半合成ア
ミノ配糖䜓抗生物質ずしお3′−フルオロ−3′−デ
オキシカナマむシンを創補したこずを蚘茉し、
たたこの新芏化合物の補造のためには、既知物質
ずしおの−デオキシ−−フルオロ−
−ゞ−−む゜プロピリデン−α−−グ
ルコフラノヌスから出発しお倚段階よりなるルヌ
トを経る合成方法を蚘茉した。 曎に、今回、本発明者は、3′−フルオロ−3′−
デオキシカナマむシンを創補するこずを意図し
お研究を進めた。カナマむシンから3′−デオキ
シカナマむシンを合成する方法においおは、カ
ナマむシンから出発しお、これをペンタ−−
保護−2″4″6″−トリ−−保護−カナマむシ
ン誘導䜓に導き、この誘導䜓の3′−ヒドロキシ
ル基をスルホン酞゚ステル化し、次にこれで生じ
た3′−スルホニルオキシ基にアルカリ金属沃化
物、臭化物又は塩化物を䜜甚させお−保護
したカナマむシンの3′−ペヌド化、3′−ブロム
化又は3′−クロロ化誘導䜓を生成させるこずが可
胜であ぀た特公昭57−876号公報、実斜䟋及
び米囜特蚱3929762号ならびに特開昭56−63993号
公報及び米囜特蚱4349666号参照。しかし、3′−
ハロゲン化剀ずしおアルカリ金属北化物を甚いる
堎合には、特公昭57−876号公報及び特開昭56−
63993号公報に蚘茉されるカナマむシンの3′−
ペヌド化、3′−ブロム化又は3′−クロロ化誘導䜓
の調補方法を転甚しおも、カナマむシンの3′−
デオキシ−3′−フルオロ化誘導䜓を補造できない
こずが実隓的に認められた。しかも、求栞詊薬ず
しおアルカリ金属北化物は他のアルカリ金属ハラ
むド類ず反応挙動の点で著るしく盞違するこず
は、埓来よく認められた凊である。 本発明者は、研究の結果、特開昭56−63993号
公報、参考䟋、米囜特蚱4349666号明现曞及び
「日本化孊䌚誌」1982幎10号1706頁〜1712頁にカ
ナマむシンの−保護誘導䜓ずしお蚘茉さ
れる既知物質、6′−4′−−カルボニル−4″
6″−−シクロヘキシリデン−2′3″−
テトラ−−トシルカナマむシンを䜿甚しお、
埌述する合成ルヌトにより3′−フルオロ−3′−デ
オキシカナマむシンを初めお合成するこずに成
功し、しかもこの新芏化合物が耐性菌を含めお
皮々なグラム陜性菌、陰性菌に察しお抗菌掻性を
有するこずを認めた。 埓぀お、本発明の芁旚ずするずころは、次匏
The present invention describes a novel semi-synthetic aminoglycoside antibiotic, 3'-fluoro-3'-deoxykanamycin B.
and its manufacturing method. This new compound exhibits high antibacterial activity against various kanamycin-susceptible and kanamycin-resistant bacteria and is useful as an antibacterial agent. Various deoxy derivatives of kanamycin A, B, and C are known as semisynthetic aminoglycoside antibiotics derived from kanamycin A, B, and C. Although these previously known deoxykanamycin derivatives have useful antibacterial activity, their antibacterial spectrum varies widely and new resistant bacteria may emerge and render them ineffective, so new and better antibacterial agents are needed. There is a constant desire to create chemical compounds. The present inventor has discovered that kanamycin A
If we can create a derivative in which the hydroxyl group at the 3' position is replaced with a fluoro group, that is, 3'-fluoro-3'-deoxykanamycin A, we expect that this will be a compound that is effective against kanamycin-resistant bacteria. succeeded in synthesizing. That is, the present inventors disclosed in the previous Japanese Patent Application No. 161615/1989 (see Japanese Patent Application Laid-open No. 40297/1989) that 3'-fluoro-3'-deoxy as a novel semi-synthetic aminoglycoside antibiotic. Describing the creation of kanamycin A,
In addition, for the production of this new compound, 3-deoxy-3-fluoro-1,2 as a known substance;
A synthetic method has been described starting from 5,6-di-O-isopropylidene-α-D-glucofuranose via a multistep route. Furthermore, this time, the present inventor has discovered that 3′-fluoro-3′-
Research was carried out with the intention of creating deoxykanamycin B. In the method for synthesizing 3'-deoxykanamycin B from kanamycin B, starting from kanamycin B, this is converted into penta-N-
A protected-2″,4″,6″-tri-O-protected-kanamycin B derivative was obtained, the 3′-hydroxyl group of this derivative was converted to a sulfonic acid ester, and the resulting 3′-sulfonyloxy group was converted to a sulfonic acid ester. It was possible to produce N,O-protected 3'-iodinated, 3'-brominated or 3'-chloro derivatives of kanamycin B by the action of alkali metal iodides, bromides or chlorides ( (See Japanese Patent Publication No. 57-876, Example 1, and U.S. Pat. No. 3,929,762, as well as JP-A-56-63,993 and U.S. Pat. No. 4,349,666). However, 3′-
When using an alkali metal fluoride as a halogenating agent, Japanese Patent Publication No. 57-876 and Japanese Patent Application Laid-open No. 56-876
3′- of Kanamycin B described in Publication No. 63993
Even if the method for preparing iodinated, 3'-brominated or 3'-chloro derivatives is reused, the 3'-
It has been experimentally observed that deoxy-3'-fluorinated derivatives cannot be prepared. Furthermore, it has been well recognized that alkali metal fluorides as nucleophilic reagents differ significantly from other alkali metal halides in terms of reaction behavior. As a result of research, the present inventor found that the N, O -Known substance described as a protected derivative, 6'-N,4'-O-carbonyl-4'',
6″-O-cyclohexylidene-1,2′,3,3″-
Using tetra-N-tosylkanamycin B,
We succeeded in synthesizing 3'-fluoro-3'-deoxykanamycin B for the first time using the synthetic route described below, and this new compound has antibacterial activity against various Gram-positive and -negative bacteria, including resistant bacteria. admitted that. Therefore, the gist of the present invention is that the following formula

【化】 で瀺される3′−フルオロ−3′−デオキシカナマむ
シン及びその酞付加塩にある。 本発明の3′−フルオロ−3′−デオキシカナマむ
シンは明確な融点を瀺さない癜色粉末であり、
埌の実斜䟋に蚘茉される物性を瀺す塩基性物質で
ある。本発明の新芏化合物は通垞、遊離塩
基たたは氎和物たたは炭酞塩ずしお埗られるが、
通垞の方法により任意の無毒性酞付加塩ずするこ
ずができる。酞付加塩ずしおは、䟋えば塩酞、硫
酞、燐酞、硝酞などの無機酞あるいは酢酞、リン
ゎ酞、ク゚ン酞、アスコルビン酞、メタンスルホ
ン酞などの有機酞ずの塩がある。 本発明の3′−フルオロ−3′−デオキシカナマむ
シン又はこれの酞付加塩は、薬孊的に蚱容でき
る液䜓又は固䜓担䜓ず配合しお抗菌剀組成物に調
合できる。 本発明の3′−フルオロ−3′−デオキシカナマむ
シン3′−−カナマむシンず略蚘する遊
離塩基の抗菌スペクトル最䜎阻止濃床は次
の第衚に瀺す通りである。比范のため、カナマ
むシンの抗菌スペクトルも第衚に瀺す。
3'-Fluoro-3'-deoxykanamycin B and its acid addition salts are represented by: 3'-Fluoro-3'-deoxykanamycin B of the present invention is a white powder that does not have a clear melting point,
It is a basic substance that exhibits the physical properties described in the later examples. The novel compounds of the present invention () are usually obtained as free bases or hydrates or carbonates, but
Any non-toxic acid addition salt can be prepared by conventional methods. Examples of acid addition salts include salts with inorganic acids such as hydrochloric acid, sulfuric acid, phosphoric acid, and nitric acid, and organic acids such as acetic acid, malic acid, citric acid, ascorbic acid, and methanesulfonic acid. The 3'-fluoro-3'-deoxykanamycin B or acid addition salt thereof of the present invention can be formulated into an antibacterial composition by combining it with a pharmaceutically acceptable liquid or solid carrier. The antibacterial spectrum (minimum inhibitory concentration) of 3'-fluoro-3'-deoxykanamycin B (abbreviated as 3'-F-kanamycin B) (free base) of the present invention is shown in Table 1 below. For comparison, the antibacterial spectrum of Kanamycin B is also shown in Table 1.

【衚】【table】

【衚】 䞊蚘のように、本発明の3′−フルオロ−3′−デ
オキシ−カナマむシンは耐性菌に察しおカナマ
むシンに比べお高い。これは耐性倧腞菌に察し
おも、たた緑膿菌に察しおも蚀える結果である。
本発明者らは、カナマむシンから出発しお3′−
フルオロ−3′−デオキシカナマむシンを補造す
る方法を開発するこずを意図しお研究を重ねた。
その結果、䞋蚘の劂き諞知芋を埗お3′−フルオロ
−3′−デオキシカナマむシンの補造方法を完成
したものである。すなわち、カナマむシンから
出発しお、カナマむシンの−保護誘導䜓
ずしお既知特開昭56−63993号公報及び米囜特
èš±4349666号明现曞参照である次匏
[Table] As described above, 3'-fluoro-3'-deoxy-kanamycin B of the present invention has a higher resistance to resistant bacteria than kanamycin B. This result holds true for both resistant E. coli and Pseudomonas aeruginosa.
Starting from kanamycin B, we
Research was carried out with the intention of developing a method for producing fluoro-3'-deoxykanamycin B.
As a result, the following findings were obtained and a method for producing 3'-fluoro-3'-deoxykanamycin B was completed. That is, starting from kanamycin B, the following formula, which is known as an N,O-protected derivative of kanamycin B (see JP-A-56-63993 and US Pat. No. 4,349,666):

【化】 〔匏䞭、Tsはトシル基を瀺す〕で瀺される
6′−4′−−カルボニル−4″6″−−シク
ロヘキシリデン−2′3″−テトラ−−
トシルカナマむシン〔化合物(a)ずいう〕を調補
し、この化合物(a)をピリゞンの存圚䞋に無氎のゞ
メチルスルホキシド䞭で2.5〜モル比の−ア
セチルむミダゟヌルず〜50℃の枩床で反応させ
るず、化合物(a)の3′−ヒドロキシル基をアセチル
化するこずなく2″−ヒドロキシ基のみを遞択的に
アセチル化できるこずを知芋した。このように生
成された6′−4′−−カルボニル−4″6″−
−シクロヘキシリデン−2″−−アセチル−
2′3″−テトラ−−トシルカナマむシ
ン〔化合物(b)ずいう〕は、これをベンゞルスル
ホニルクロラむドの劂きベンゞルスルホニル化
剀、メシルクロラむドの劂きメシル化剀又はトシ
ルクロラむドの劂きトシル化剀ず無氎ピリゞン䞭
で50℃以䞋の枩床で反応するず、化合物(b)の−
ヒドロキシル基が殆んどスルホニル化されずに
3′−ヒドロキシル基が実質的に遞択的にスルホニ
ル化できるこず、埓぀お3′−−スルホニル−
6′−4′−−カルボニル−4″6″−−シク
ロヘキシリデン−2″−−アセチル−2′
3″−テトラ−−トシル−カナマむシン
〔化合物(c)ずいう〕を生成できるこず、たた化合
物(b)の3′−ヒドロキシル基の遞択的スルホニル化
にはベンゞルスルホニル化剀が最も良く適するこ
ず、曎にメシル化剀を甚いた堎合には化合物(b)の
−ヒドロキシル基も郚分的にスルホニル化され
るが䜆しそれで生成した3′−−スルホニル
化生成物をクロマトグラフむヌの手法で所望のモ
ノ−3′−−スルホニル誘導䜓、即ち化合物(c)か
ら分離できるこずを知芋した。曎に、この化合物
(c)は、これを℃ないしメタノヌル、゚タノヌル
又はベンゞルアルコヌルの沞点たでの反応枩床、
分間〜時間又はそれ以䞊の反応時間で、化合
物(c)に察しお〜10モル比の氎酞化ナトリりムの
劂き氎酞化アルカリ金属を甚い、〜重
量の濃床で無氎メタノヌル又は無氎゚タノヌル
䞭で、若しくは無氎ベンゞルアルコヌルの存圚䞋
に凊理するず、化合物(c)の2″−−アセチル基が
脱離するず共に、化合物(c)の3′−スルホニルオキ
シ基ず2′−トシルアミノ基ずが反応しおアチリゞ
ン環の閉成を起し、たたこれず同時に、化合物(c)
の6′−アミノ基ず4′−ヒドロキシル基ずを架橋し
おいたカルボニル基の結合手の䞀方
が4′−ヒドロキシル基から切れおメタノヌル、゚
タノヌル又はベンゞルアルコヌルず反応し、6′−
アミノ基はメトキシカルボニルアミノ基又ぱト
キシカルボニルアミノ基又はベンゞルオキシカル
ボニルアミノ基の圢に転化し、こうしお次匏
[Chemical formula] [In the formula, Ts represents a tosyl group]
6′-N,4′-O-carbonyl-4″,6″-O-cyclohexylidene-1,2′,3,3″-tetra-N-
Tosylkanamycin B [referred to as compound (a)] is prepared and this compound (a) is reacted with 2.5 to 5 molar ratio of N-acetylimidazole in anhydrous dimethyl sulfoxide in the presence of pyridine at a temperature of 0 to 50°C. It was found that only the 2''-hydroxy group of compound (a) can be selectively acetylated without acetylating the 3'-hydroxyl group.The 6'-N,4'- O-carbonyl-4″,6″-
O-cyclohexylidene-2″-O-acetyl-
1,2',3,3''-tetra-N-tosylkanamycin B [referred to as compound (b)] is prepared by treating it with a benzylsulfonylating agent such as benzylsulfonyl chloride, a mesylating agent such as mesyl chloride, or a mesylating agent such as tosyl chloride. When reacted with a tosylating agent in anhydrous pyridine at a temperature below 50°C, the 5-
Almost no hydroxyl group is sulfonylated
that the 3'-hydroxyl group can be substantially selectively sulfonylated;
6′-N,4′-O-carbonyl-4″,6″-O-cyclohexylidene-2″-O-acetyl-1,2′,
3,3″-tetra-N-tosyl-kanamycin B
[Compound (c)] can be produced, and a benzylsulfonylating agent is most suitable for the selective sulfonylation of the 3'-hydroxyl group of compound (b), and furthermore, when a mesylating agent is used, the compound The 5-hydroxyl group in (b) is also partially sulfonylated, but the resulting 3',5-O-sulfonylated product is converted to the desired mono-3'-O-sulfonyl derivative by chromatography. , that is, it was found that it could be separated from compound (c). Furthermore, this compound
(c) is the reaction temperature from 0°C to the boiling point of methanol, ethanol or benzyl alcohol;
Anhydrous methanol at a concentration of 1 to 5% (by weight) using an alkali metal hydroxide such as sodium hydroxide in a molar ratio of 2 to 10 to compound (c) for a reaction time of 5 minutes to 2 hours or more. Alternatively, when treated in anhydrous ethanol or in the presence of anhydrous benzyl alcohol, the 2''-O-acetyl group of compound (c) is eliminated, and the 3'-sulfonyloxy group and 2'- The reaction with the tosylamino group causes the closure of the atridine ring, and at the same time, compound (c)
One of the bonds of the carbonyl group (O=C) that bridged the 6'-amino group and the 4'-hydroxyl group is cut from the 4'-hydroxyl group and reacts with methanol, ethanol, or benzyl alcohol, and 6 ′−
The amino group is converted into the form of a methoxycarbonylamino group or an ethoxycarbonylamino group or a benzyloxycarbonylamino group, thus giving the formula

【化】 〔匏䞭、Tsはトシル基であり、A′はメトキシ
カルボニル基、゚トキシカルボニル基又はベンゞ
ルオキシカルボニル基である〕で瀺される4″
6″−−シクロヘキシリデン3′−デオキシ−3′−
゚ピ−2′3′−トシル゚ピミノ−6′−−
メトキシ又ぱトキシ又はベンゞルオキシカ
ルボニル−3″−トリ−−トシルカナマ
むシン〔化合物(d)ずいう〕を生成できるこずを
知芋した。 なお、化合物(c)に察しお氎酞化ナトリりムの劂
き氎酞化アルカリ等を無氎メタノヌル又は無氎゚
タノヌル又は無氎ベンゞルアルコヌル䞭で反応さ
せる際に、氎酞化アルカリ金属を䜜甚させる反応
枩床、反応時間及び䜜甚濃床、等を高かくするこ
ず等によ぀お、反応条件を前述の適圓条件より苛
酷にするず、2″−−アセチル基の脱離及び2′
3′−アチリゞン環の閉成が起るが、これず同時
に、化合物(c)から4′6′−環状カルバメヌト郚分
たでが分解しお終い、6′−アミノ基
が保護されおない状態になり、3′−−スルホニ
ルオキシ基ず奜たしくなく反応し、その埌の反応
に悪圱響する。 曎に本発明者は実隓を重ねお研究を続けた結
果、化合物(d)は、無氎ゞメチルホルムアミド、ゞ
メチルアセトアミドの劂き極性有機溶媒を反応媒
質ずしお甚いお、化合物(d)をナトリりム氎玠ゞ北
化物又はカリりム氎玠ゞ北化物ず加熱䞋に、䟋え
ば120〜200℃の枩床で䟋えば玄10分間〜玄20時間
の反応時間で反応させるず、2′3′−アゞリゞン
環が開環し䞔぀3′䜍が北玠化されるこず、埓぀お
4″6″−−シクロヘキシリデン−3′−フルオロ
−3′−デオキシ−6′−−メトキシ又ぱトキ
シ又はベンゞルオキシカルボニル−2′
3″−テトラ−−トシルカナマむシン〔化
合物(c)ずいう〕が生成されるこずを発芋した。こ
のようにアゞリゞン環の開環に䌎぀お、前蚘のア
ルカリ金属氎玠ゞ北化物によりカナマむシン化
合物の3′䜍が北玠化されるこずは、本発明者の知
る限りではアミノ配糖䜓抗生物質に぀いお初めお
の知芋である。 前蚘の化合物(e)は、これの6′−アミノ基及び
−2′−−及び3″−アミノ基におけるアミノ
保護基を脱離させる公知の脱保護法で凊理する
ず、目的の3′−フルオロ−3′−デオキシカナマむ
シン化合物を生成した。他方、化合物(d)
から先づトシル基のすべおを脱離した埌にその埌
に前述の条件䞋でアルカリ金属氎玠ゞ北化物ず反
応させる堎合には、3′−フルオロ−3′−デオキシ
カナマむシン化合物は生成できないこずを認め
た。このようにしお本発明者は、カナマむシン
から出発しお3′−フルオロ−3′−デオキシカナマ
むシンを合成するルヌトを開発するこずに成功
した。 曎に、化合物(d)の6′−アミノ基䞊のアミノ保護
基メトキシカルボニル基又ぱトキシカルボニ
ル基又はベンゞルオキシカルボニル基、ならび
に4″−及び6″−ヒドロキシル基䞊のヒドロキシル
保護基シクロヘキシリデン基を化合物(d)から
脱離し、こうしお埗られた3′−デオキシ−3′−゚
ピ−2′3′−−トシル゚ピミノ−
3′−トリ−−トシルカナマむシンの遊離の
6′−アミノ基に改めおアルカノむル基の劂き別皮
のアミノ保護基䜆しスルホニル基型のものでな
いを導入し、こうしお埗られた−保護−3′−
デオキシ−3′−゚ピ−2′3′−゚ピミノ−カナマ
むシンを前述ず同様の手法でアルカリ金属氎玠
ゞ北化物で凊理する堎合にも、望たしい−保護
−3′−フルオロ−3′−デオキシカナマむシン化
合物を生成できるこずを認めた。 前述した合成ルヌトで甚いた出発䞭間䜓化合物
(a)では、−2′−−及び3″−アミノ基を保
護するアミノ保護基はトシル基であり䞔぀4″−及
び6″−ヒドロキシル基を保護するヒドロキシル保
護基はシクロヘキシリデン基であ぀たが、アミノ
保護甚のトシル基は均等的に働く他のスルホニル
基型の公知のアミノ保護基に取代え䞔぀4″−及び
6″−䜍のシクロヘキシリデン基は他の公知のヒド
ロキシル保護基で取代えお埗られるような、化合
物(a)の均等な保護誘導䜓を甚いおも、前述ず同様
な反応工皋を斜すこずによ぀お、化合物(d)ず均等
な4″6″−ゞ−−保護−3″−トリ−
−スルホニル化保護−3′−デオキシ−3′−゚ピ−
6′−−メトキシ又ぱトキシ又はベンゞルオ
キシカルボニル−2′3′−−スルホニル化
保護゚ピミノ−カナマむシンを調補できるこ
ずを認めた。 本発明は前述した諞知芋に基づいお完成された
ものである。 埓぀お、第の本発明の芁旚ずするずころは、
次の䞀般匏
[Chemical formula] [In the formula, Ts is a tosyl group, and A′ is a methoxycarbonyl group, an ethoxycarbonyl group, or a benzyloxycarbonyl group] 4″,
6″-O-cyclohexylidene 3′-deoxy-3′-
epi-2′,3′-(N,tosyl)epimino-6′-N-
It has been found that methoxy (or ethoxy or benzyloxy) carbonyl-1,3,3''-tri-N-tosylkanamycin B [referred to as compound (d)] can be produced. When reacting alkali hydroxides, etc., in anhydrous methanol, anhydrous ethanol, or anhydrous benzyl alcohol, by increasing the reaction temperature, reaction time, working concentration, etc. at which the alkali metal hydroxide acts, etc. When the reaction conditions are made more severe than the appropriate conditions mentioned above, the elimination of the 2″-O-acetyl group and the 2′,
Closing of the 3'-atiridine ring occurs, but at the same time, the 4',6'-cyclic carbamate moiety (O=C) from compound (c) decomposes, and the 6'-amino group It becomes unprotected and reacts undesirably with the 3'-O-sulfonyloxy group, adversely affecting subsequent reactions. Furthermore, as a result of repeated experiments and research, the present inventors found that compound (d) was obtained by converting compound (d) into sodium hydrogen difluoride or sodium hydrogen difluoride using a polar organic solvent such as anhydrous dimethylformamide or dimethylacetamide as a reaction medium. When reacted with potassium hydrogen difluoride under heating, for example, at a temperature of 120 to 200°C for a reaction time of, for example, about 10 minutes to about 20 hours, the 2',3'-aziridine ring opens and the 3'-position is fluorinated, therefore
4″,6″-O-cyclohexylidene-3′-fluoro-3′-deoxy-6′-N-methoxy (or ethoxy or benzyloxy)carbonyl-1,2′,
It has been discovered that 3,3''-tetra-N-tosylkanamycin B [referred to as compound (c)] is produced.In this way, along with the opening of the aziridine ring, kanamycin is produced by the alkali metal hydrogen difluoride. As far as the inventors are aware, this is the first finding of an aminoglycoside antibiotic that the 3'-position of Compound B is fluorinated. 1
When treated with a known deprotection method that removes the amino protecting groups at -, 2'-, 3- and 3''-amino groups, the desired 3'-fluoro-3'-deoxykanamycin B (compound) was produced. .On the other hand, compound (d)
It is recognized that the 3'-fluoro-3'-deoxykanamycin B compound cannot be produced if all of the tosyl groups are first eliminated and then reacted with an alkali metal hydrogen difluoride under the conditions described above. Ta. In this way, the inventor has discovered that kanamycin B
We succeeded in developing a route to synthesize 3'-fluoro-3'-deoxykanamycin B starting from 3'-fluoro-3'-deoxykanamycin B. Furthermore, an amino protecting group (methoxycarbonyl group, ethoxycarbonyl group, or benzyloxycarbonyl group) on the 6′-amino group of compound (d), and a hydroxyl protecting group (cyclohexyloxycarbonyl group) on the 4″- and 6″-hydroxyl groups dene group) is removed from compound (d), and the thus obtained 3'-deoxy-3'-epi-2',3'-(N-tosyl)epimino-1,3,
Free 3'-tri-N-tosylkanamycin B
Another type of amino protecting group such as an alkanoyl group (but not of the sulfonyl group type) is introduced into the 6'-amino group, and the N-protected -3'-
The desired N-protected -3'-fluoro-3'- It was confirmed that deoxykanamycin B compound can be produced. Starting intermediate compounds used in the synthetic route described above
In (a), the amino protecting group protecting the 1-, 2′-, 3- and 3″-amino groups is a tosyl group and the hydroxyl protecting group protecting the 4″- and 6″-hydroxyl groups is a cyclohexyl group. The tosyl group for amino protection was replaced with other known amino protecting groups of the sulfonyl group type that work equally well, and the 4″- and
An equivalent protected derivative of compound (a), which can be obtained by replacing the cyclohexylidene group at the 6″-position with other known hydroxyl protecting groups, can also be obtained by performing the same reaction steps as described above. 4″,6″-di-O-protected-1,3,3″-tri-N equivalent to compound (d)
-Sulfonylation protection-3'-deoxy-3'-epi-
It has been found that 6'-N-methoxy (or ethoxy or benzyloxy) carbonyl-2',3'-(N-sulfonylation protected) epimino-kanamycin B can be prepared. The present invention was completed based on the above-mentioned findings. Therefore, the gist of the second invention is as follows:
The following general formula

【化】 〔匏䞭、はスルホニル基型のアミノ保護基以
倖のアミノ保護基、又は氎玠原子であり、はス
ルホニル基型であるアミノ保護基であり、はア
ルキルスルホニル基、アラルキルスルホニル基又
はアリヌルスルホニル基であり、及びは倫々
に氎玠原子又は䟡のヒドロキシル保護基であ
り、あるいは及びは共同しお個の䟡のヒ
ドロキシル保護基を圢成する〕で瀺される3′−デ
オキシ−3′−゚ピ−2′3′−゚ピミノ−カナマむ
シンの保護誘導䜓を次匏 MeHF2  〔匏䞭、Meはアルカリ金属原子である〕のア
ルカリ金属氎玠ゞ北化物ず有機溶媒䞭で加熱䞋に
反応させお次の䞀般匏
[In the formula, A is an amino-protecting group other than a sulfonyl-type amino-protecting group or a hydrogen atom, B is a sulfonyl-type amino-protecting group, and Q is an alkylsulfonyl group or an aralkylsulfonyl group. or an arylsulfonyl group, X and Y are each a hydrogen atom or a monovalent hydroxyl protecting group, or X and Y jointly form one divalent hydroxyl protecting group] The protected derivative of '-deoxy-3'-epi-2',3'-epimino-kanamycin B has the following formula: MeHF 2 () [wherein Me is an alkali metal atom] and an alkali metal hydrogen difluoride and an organic The following general formula is obtained by reacting under heating in a solvent.

【化】 〔匏䞭、及びは前蚘ず同じ意
味である〕で瀺される3′−フルオロ−3′−デオキ
シカナマむシン化合物を生成させ、さらに匏
の化合物䞭にアミノ保護基及び
又はヒドロキシル保護基が残留す
る堎合には、これら保護基およびスルホニル基
を公知方法で脱離するこずを特城ずする、
次匏
[Chemical formula] A 3'-fluoro-3'-deoxykanamycin B compound represented by the formula [wherein A, B, Q, When amino protecting groups (A, B) and (or) hydroxyl protecting groups (X, Y) remain, these protecting groups and sulfonyl groups (Q) are removed by known methods,
The following formula

【化】 で瀺される3′−フルオロ−3′−デオキシカナマむ
シンの補造法にある。 第の本発明の方法においお、䞀般匏の
3′−デオキシ−3′−゚ピ−2′3′−゚ピミノ−カ
ナマむシン保護誘導䜓におけるアミノ保護基
は反応に関䞎しない䜕れか既知のアミノ保護基、
䟋えばアセチル基、トリフルオロアセチル基の劂
きアルカノむル基、ベンゟむル基の劂きアロむル
基などのアシル基、さらにメトキシカルボニル
基、゚トキシカルボニル基、ブトキシカルボニル
基の劂きアルコキシカルボニル基ベンゞルオキ
シカルボニル基、プネチルオキシカルボニル基
の劂きアラルキルオキシカルボニル基、又はプ
ノキシカルボニル基又はメトキシプノキシカル
ボニル基の劂きアリヌルオキシカルボニル基であ
るこずができる。䜆し、基がメシル基又はトシ
ル基の劂きアルキルスルホニル基、アリヌルスル
ホニル基又はアラルキルスルホニル基の劂きスル
ホニル基型のものであるず、アルカリ金属氎玠ゞ
北化物の反応に際しお、望たしくない副生物を生
ずる恐れがあるので、アミノ保護基(A)はスルホニ
ル基型のものではない。基(A)は氎玠原子であるこ
ずもできるが、化合物の6′−アミノ基は保
護されおあるのが奜たしい。 䞀般匏の化合物における−−及び
3″−アミノ基はメシル基又はトリフルオロメチル
スルホニル基の劂きアルキルスルホニル基、ベン
ゞルスルホニル基の劂きアラルキルスルホニル
基トシル基の劂きアリヌルスルホニル基の型の
アミノ保護基(B)で保護される。2′3′−アチリゞ
ン環の窒玠原子に結合するスルホニル基はず
同じスルホニル基であるのがよい。 化合物における4″−ヒドロキシル基及び
6″−ヒドロキシル基を保護する保護基
は䜎玚アルキル基、プニル基の劂きアリヌル
基アセチル基の劂きアルカノむル基、又はベン
ゟむル基の劂きアロむル基を含めお、䜕れか既知
の䟡ヒドロキシル保護基であるこずができる。
しかし、及びは共同しおむ゜プロピリデン基
の劂き䜎玚アルキリデン基、ベンゞリデン基の劂
きアラルキリデン基、シクロヘキシリデン基の劂
きシクロアルキリデン基、又はテトラヒドロピラ
ニリデン基を含めお、䜕れか既知の䟡ヒドロキ
シル保護基を圢成しおいるこずができる。これら
アミノ保護基及びヒドロキシル保護基をカナマむ
シン化合物に導入するこずは、䟋えば特開昭55
−105699号、英囜特蚱第2043634B号特開昭56
−68698号、米囜特蚱第4357466号特開昭56−
152497号、米囜特蚱第4359572号明现曞に蚘茉さ
れる劂き埓来知られた保護技術で達成できる。 第の本発明の方法においお、䞀般匏の
−保護された2′3′−゚ピミノ化カナマむ
シン化合物に反応させるべきアルカリ金属氎玠
ゞ北化物はNaHF2KHF2又はLiHF2で
ありうるが、KHF2が奜たしい。この反応は、反
応に適圓な也燥した有機溶媒䞭で行いうるが、ゞ
メチルホルムアミド、ゞメチルアセトアミド、ア
セトニトリル又はスルホランの劂き極性有機溶媒
䞭で行うのが奜たしい。ゞメチルホルムアミドが
最も適する。䜿甚する有機溶媒の皮類によ぀お
は、所望の反応が進たないこずがある。反応は加
熱䞋に行われ、反応枩床は120〜200℃の範囲が適
圓である。150〜160℃の範囲内であるのが奜たし
い。 䞊蚘の反応によ぀お䞀般匏の3′−フルオ
ロ3′−デオキシ−カナマむシン保護誘導䜓が生
成され、これの採取は反応液を酢酞゚チルの劂き
適圓な有機溶媒で抜出し、さらにシリカゲル・カ
ラムクロマトグラフむヌで分離、粟補するこずに
より行いうる。 䞀般匏の化合物䞭にアミノ保護基及び
又はヒドロキシル保護基が残留する堎合には、
脱保護工皋で保護基を脱離する。この脱保護工皋
は、甚いた保護基の皮類に応じお、段階に分け
お、垞甚される脱保護法で公知手法で䟋えば前出
の特開昭公報又は米囜特蚱明现曞に瀺された手法
で行い埗る。この脱保護反応で埗られた反応液を
濃瞮し、固䜓残枣を氎に溶解しCM−セフアデツ
クスSephadex−25のカラムに通しおアン
モニア氎で展開するこずにより、単離、粟補する
ず、目的の3′−フルオロ−3′−デオキシカナマむ
シン〔化合物〕が収埗できる。 第の本発明の芁旚ずするずころは、次の䞀般
匏
A method for producing 3'-fluoro-3'-deoxykanamycin B represented by: In the method of the second invention, the general formula ()
Amino protecting group A in 3'-deoxy-3'-epi-2',3'-epimino-kanamycin B protected derivative
is any known amino protecting group that does not participate in the reaction,
For example, alkanoyl groups such as acetyl group, trifluoroacetyl group, acyl groups such as aroyl group such as benzoyl group, and alkoxycarbonyl groups such as methoxycarbonyl group, ethoxycarbonyl group, butoxycarbonyl group; benzyloxycarbonyl group, phenethyl group. It can be an aralkyloxycarbonyl group such as an oxycarbonyl group, or an aryloxycarbonyl group such as a phenoxycarbonyl group or a methoxyphenoxycarbonyl group. However, if the group A is a sulfonyl group type such as an alkylsulfonyl group such as a mesyl group or a tosyl group, an arylsulfonyl group, or an aralkylsulfonyl group, undesirable by-products will be produced during the reaction of the alkali metal hydrogen difluoride. The amino protecting group (A) is not of the sulfonyl group type due to concerns. Although the group (A) can be a hydrogen atom, it is preferable that the 6'-amino group of the compound () is protected. 1-, 3- and in the compound of general formula ()
The 3''-amino group is protected with an amino protecting group (B) of the type of an alkylsulfonyl group such as a mesyl group or a trifluoromethylsulfonyl group, an aralkylsulfonyl group such as a benzylsulfonyl group; an arylsulfonyl group such as a tosyl group. The sulfonyl group Q bonded to the nitrogen atom of the 2′,3′-atiridine ring is preferably the same sulfonyl group as B. The 4″-hydroxyl group and
Protecting group (X, Y) that protects the 6″-hydroxyl group
can be any known monovalent hydroxyl protecting group, including lower alkyl groups, aryl groups such as phenyl groups; alkanoyl groups such as acetyl groups, or aroyl groups such as benzoyl groups.
However, X and Y may jointly be any known divalent group, including a lower alkylidene group such as an isopropylidene group, an aralkylidene group such as a benzylidene group, a cycloalkylidene group such as a cyclohexylidene group, or a tetrahydropyranylidene group. It may form a hydroxyl protecting group. Introduction of these amino-protecting groups and hydroxyl-protecting groups into kanamycin B compounds has been described, for example, in JP-A No. 55
−105699, British Patent No. 2043634B; Japanese Patent Application Publication No. 1983
−68698, U.S. Patent No. 4357466; Japanese Patent Application Publication No. 1983-
This can be accomplished using conventional protection techniques such as those described in US Pat. No. 152,497 and US Pat. No. 4,359,572. In the second method of the present invention, the alkali metal hydrogen difluoride () to be reacted with the N,O-protected 2',3'-epiminated kanamycin B compound of the general formula () is NaHF 2 , KHF 2 or LiHF2 , but KHF2 is preferred. This reaction may be carried out in a dry organic solvent suitable for the reaction, but is preferably carried out in a polar organic solvent such as dimethylformamide, dimethylacetamide, acetonitrile or sulfolane. Dimethylformamide is most suitable. Depending on the type of organic solvent used, the desired reaction may not proceed. The reaction is carried out under heating, and the reaction temperature is suitably in the range of 120 to 200°C. Preferably, the temperature is within the range of 150 to 160°C. The above reaction produces a 3'-fluoro-3'-deoxy-kanamycin B protected derivative of the general formula (), which can be collected by extracting the reaction solution with a suitable organic solvent such as ethyl acetate, and then extracting it with silica gel. This can be carried out by separation and purification using column chromatography. If an amino protecting group and/or a hydroxyl protecting group remain in the compound of general formula (),
The protecting group is removed in the deprotection step. This deprotection step is carried out in stages depending on the type of protecting group used, using a commonly used deprotection method and a known method, such as the method disclosed in the above-mentioned Japanese Patent Application Laid-Open No. It can be done. The reaction solution obtained in this deprotection reaction is concentrated, and the solid residue is dissolved in water, passed through a CM-Sephadex C-25 column, and developed with aqueous ammonia to isolate and purify the desired product. 3'-fluoro-3'-deoxykanamycin B [compound ()] can be obtained. The gist of the third invention is the following general formula

【化】 〔匏䞭、はスルホニル基型のアミノ保護基で
あり、及びは倫々に氎玠原子又は䟡のヒド
ロキシル保護基であるか、あるいは及びは共
同しお個の䟡ヒドロキシル保護基を圢成し、
はず同じアルキルスルホニル基、アラルキル
スルホニル基又はアリヌルスルホニル基であり、
はず同じ又は異なるアルキルスルホニル基、
アラルキルスルホニル基又はアリヌルスルホニル
基であり、はヒドロキシル保護基又は氎玠原子
である〕で瀺される3′−−スルホニル−6′−
4′−−カルボニル−カナマむシンの保護
誘導䜓をメタノヌル、又ぱタノヌル又はベンゞ
ルアルコヌルの存圚䞋に氎酞化アルカリ金属ず反
応させお次の䞀般匏
[Formula, B is a sulfonyl group-type amino protecting group, X and Y are each a hydrogen atom or a monovalent hydroxyl protecting group, or X and Y are jointly one 2 forming a valent hydroxyl protecting group,
Q is the same alkylsulfonyl group, aralkylsulfonyl group or arylsulfonyl group as B,
Z is the same or different alkylsulfonyl group as Q,
3'-O-sulfonyl-6'-, which is an aralkylsulfonyl group or an arylsulfonyl group, and V is a hydroxyl protecting group or a hydrogen atom.
The protected derivative of N,4'-O-carbonyl-kanamycin B is reacted with an alkali metal hydroxide in the presence of methanol, ethanol or benzyl alcohol to form the following general formula:

【化】 〔匏䞭、及びは前蚘ず同じ意
味をもち、A′はメトキシカルボニル基又ぱト
キシカルボニル基又はベンゞルオキシカルボニル
基の圢のアミノ保護基である〕で瀺される3′−デ
オキシ−3′−゚ピ−2′3′−゚ピミノ−6′−−
アルコキシ−又はアラルオキシ−カルボニル−カ
ナマむシンの保護誘導䜓を生成し、次に匏
′の化合物を盎ちに甚いるか、若しくは匏
′の化合物からヒドロキシル保護基
の䞀郚又は党郚を脱離しお埗られた3′−
デオキシ−3′−゚ピ−2′3′−゚ピミノ−6′−
−保護カナマむシン化合物を甚いお、これを次
匏 MeHF2  〔匏䞭、Meはアルカリ金属原子である〕のア
ルカリ金属氎玠ゞ北化物ず有機溶媒䞭で加熱䞋に
反応させお次の䞀般匏
[In the formula, B, X, Y, Q and V have the same meanings as above, and A' is an amino protecting group in the form of a methoxycarbonyl group, an ethoxycarbonyl group or a benzyloxycarbonyl group] 3'-deoxy-3'-epi-2',3'-epimino-6'-N-
Either a protected derivative of alkoxy- or araloxy-carbonyl-kanamycin B is generated and then a compound of formula (') is used immediately, or a compound of formula (') is formed with a hydroxyl protecting group (V,
3′- obtained by eliminating part or all of X, Y)
Deoxy-3'-epi-2',3'-epimino-6'-N
-Using a protected kanamycin B compound, it is reacted with an alkali metal hydrogen difluoride of the following formula MeHF 2 () [wherein Me is an alkali metal atom] under heating in an organic solvent to form the following general formula

【化】 〔匏䞭、A′はメトキシカルボニル基又ぱト
キシカルボニル基又はベンゞルオキシカルボニル
基の圢のアミノ保護基であり、は前蚘ず同じア
ミノ保護基であり、X′及びY′は前蚘の
及びず同じ意味をも぀か、あるいはX′及び
Y′が倫々に氎玠原子である〕で瀺される3′−フル
オロ−3′−デオキシカナマむシン化合物を生成
させ、さらに匏′の化合物䞭にアミノ保護
基及び又はヒドロキシル保護基
が残留する堎合には、これら保護基お
よびスルホニル基を公知方法で脱離するこ
ずを特城ずする、次匏
[In the formula, A' is an amino-protecting group in the form of a methoxycarbonyl group, an ethoxycarbonyl group, or a benzyloxycarbonyl group, B is the same amino-protecting group as above, and V, X' and Y' are The above V,
have the same meaning as X and Y, or
3'-fluoro-3'-deoxykanamycin B compound represented by When the hydroxyl protecting groups (X, Y) remain, these protecting groups and the sulfonyl group (Q) are removed by a known method.

【化】 で瀺される3′−フルオロ−3′−デオキシカナマむ
シンの補造法にある。 第の本発明の方法においお、出発化合物ずし
お甚いる䞀般匏の3′−−スルホニル−
6′−4′−−カルボニル−カナマむシン保
護誘導䜓におけるアミノ保護基、ならびにヒド
ロキシル保護基及びは倫々に、第の本発明
の方法で出発化合物ずしお甚いた䞀般匏の
3′−デオキシ−3′−゚ピ−2′3′−゚ピミノ−カ
ナマむシン保護誘導䜓におけるアミノ保護基
、ならびにヒドロキシル保護基及びず倫々
に同じものでよい。3′−−スルホニル基
は炭玠数〜のアルキルスルホニル基、䟋えば
メタンスルホニル基メシル基、゚タンスルホ
ニル基アラルキルスルホニル基、䟋えばベンゞ
ルスルホニル基アリヌルスルホニル基、䟋えば
トシル基でありうるが、ベンゞルスルホニル基で
あるのが奜たしい。 䞀般匏の3′−−スルホニル−カナマむ
シン誘導䜓ずメタノヌル又ぱタノヌル又はベ
ンゞルアルコヌルの存圚䞋に氎酞化ナトリりムの
劂き氎酞化アルカリ金属ずの反応は無氎条件䞋で
行われる。氎酞化アルカリ金属はカナマむシン
化合物のモル圓りに〜10モル比で䞔぀
反応媒質䞭で〜重量の濃床で甚いるのが奜
たしい。反応枩床は℃ないし反応媒質の還流枩
床たでの範囲でありうる。反応時間は分間以䞊
あればよく、時間が長びいおも、望たしくない副
生物は䜙り生じないけれども、所望の2′3′−゚
ピミノ化生成物′の6′−アミノ基に結合し
たメトキシカルボニル基又ぱトキシカルボニル
基、等A′が脱離しない皋床の反応条件を甚
いるのがよい。 第の本発明の方法においお、䞭間䜓ずしお生
成した䞀般匏′の2′3′−゚ピミノ化生成
物ず匏のアルカリ金属氎玠ゞ北化物ずの反
応工皋、ならびに、その埌に、必芁に応じお行わ
れる䞀般匏′の3′−フルオロ−3′−デオキ
シカナマむシン化合物の脱保護工皋は第の本
発明の方法における察応の工皋ず同じ芁領で実斜
できる。 次に本発明を参考䟋及び実斜䟋に぀いお説明す
る。これらの䟋で瀺された匏においお、Acはア
セチル基、Tsはトシル基、Besはベンゞルスルホ
ニル基、Cbmはメトキシカルボニル基、Tflはト
リフルオロメタンスルホニル基、Msはメシル基
を衚わす。 参考䟋  2″−−アセチル−4′−6′−−カルボニ
ル−4″6″−−シクロヘキシリデン−
2′3″−テトラ−−トシルカナマむシン
〔化合物(b)ずいう〕の生成
A method for producing 3'-fluoro-3'-deoxykanamycin B represented by: In the third method of the present invention, 3'-O-sulfonyl- of the general formula (V) used as a starting compound
The amino protecting group B and the hydroxyl protecting groups X and Y in the 6′-N,4′-O-carbonyl-kanamycin B protected derivative are each represented by the general formula () used as the starting compound in the second method of the present invention. of
The amino protecting group B and the hydroxyl protecting groups X and Y, respectively, in the 3'-deoxy-3'-epi-2',3'-epimino-kanamycin B protected derivative may be the same. 3'-O-sulfonyl group (Z)
can be an alkylsulfonyl group having 1 to 4 carbon atoms, such as a methanesulfonyl group (mesyl group), an ethanesulfonyl group; an aralkylsulfonyl group, such as a benzylsulfonyl group; an arylsulfonyl group, such as a tosyl group, but is a benzylsulfonyl group. is preferable. The reaction of the 3'-O-sulfonyl-kanamycin B derivative of general formula () with an alkali metal hydroxide such as sodium hydroxide in the presence of methanol or ethanol or benzyl alcohol is carried out under anhydrous conditions. Alkali metal hydroxide is kanamycin B
It is preferably used in a molar ratio of 2 to 10 per mole of compound () and in a concentration of 1 to 5% by weight in the reaction medium. The reaction temperature can range from 0°C to the reflux temperature of the reaction medium. The reaction time may be at least 5 minutes, and even if the reaction time is prolonged, undesirable by-products will not be produced as much, but the desired 2',3'-epimination product (') will be bonded to the 6'-amino group of the product ('). It is preferable to use reaction conditions that do not eliminate the methoxycarbonyl group, ethoxycarbonyl group, etc. (A'). In the third method of the present invention, the step of reacting the 2',3'-epimination product of the general formula (') produced as an intermediate with the alkali metal hydrogen difluoride of the formula (), and thereafter The step of deprotecting the 3'-fluoro-3'-deoxykanamycin B compound of general formula ('), which is carried out as necessary, can be carried out in the same manner as the corresponding step in the second method of the present invention. Next, the present invention will be explained with reference to reference examples and examples. In the formulas shown in these examples, Ac represents an acetyl group, Ts represents a tosyl group, Bes represents a benzylsulfonyl group, Cbm represents a methoxycarbonyl group, Tfl represents a trifluoromethanesulfonyl group, and Ms represents a mesyl group. Reference example 1 2″-O-acetyl-4′-O, 6′-N-carbonyl-4″, 6″-O-cyclohexylidene-1,
Production of 3,2′,3″-tetra-N-tosylkanamycin B [referred to as compound (b)]

【化】 6′−4′−−カルボニル−4″6″−−シ
クロヘキシリデン−2′3″−テトラ−
−トシルカナマむシン〔すなわち、前出の化合
物(a)〕の1.58を無氎ゞメチルスルホキシドずピ
リゞンずの混液7.9mlに溶解し、−
アセチルむミダゟヌル

[Chemical formula] 6′-N,4′-O-carbonyl-4″,6″-O-cyclohexylidene-1,2′,3,3″-tetra-N
- 1.58 g of tosylkanamycin B [i.e., compound (a) above] was dissolved in 7.9 ml of a mixture of anhydrous dimethyl sulfoxide and pyridine (9:1), and N-
Acetyl imidazole (

【匏】の0.58を加え、宀枩 にお24時間攟眮しおアセチル化した。反応液を飜
和炭酞氎玠ナトリりム液160mlに投入し、析出し
た沈柱を取、氎掗埌に也燥するず、衚題化合物
(b)の1.6を埗た。 参考䟋  2″−−アセチル−3′−−ベンゞルスルホニ
ル−4′−−6′−−カルボニル−4″6″−
−シクロヘキシリデン−2′3″−テト
ラ−−トシルカナマむシン〔化合物−
ずいう〕の生成
0.58 g of [Formula]) was added and left to stand at room temperature for 24 hours for acetylation. The reaction solution was poured into 160 ml of saturated sodium bicarbonate solution, the precipitate was collected, washed with water, and dried to obtain the title compound.
1.6 g of (b) was obtained. Reference example 2 2″-O-acetyl-3′-O-benzylsulfonyl-4′-O-6′-N-carbonyl-4″,6″-O
-Cyclohexylidene-1,3,2',3''-tetra-N-tosylkanamycin B [Compound (c-
1) Generation of

【化】 参考䟋で埗た化合物(b)の115mgを無氎ピリゞ
ンmlに溶解し、塩化ベンゞルスルホニル27mgを
加え、−20℃にお時間反応せしめお3′−−ベ
ンゞルスルホニル化した。少量の氎0.02mlを
加えお埌、反応液を濃瞮し残枣を倧量の氎で掗滌
埌に也燥するず、無色固䜓ずしお衚題化合物
−の125mgを埗た。 実斜䟋  (ã‚€) 4″6″−−シクロヘキシリデン−3′−デオ
キシ−3′−゚ピ−6′−−メトキシカルボニル
−3″−トリ−−トシル−2′3′−
−トシル゚ピミノカナマむシン〔化合物
−ずいう〕の生成
[Chemical formula] 115 mg of compound (b) obtained in Reference Example 1 was dissolved in 2 ml of anhydrous pyridine, 27 mg of benzylsulfonyl chloride was added, and the mixture was reacted at -20°C for 5 hours to form 3'-O-benzylsulfonylation. After adding a small amount of water (0.02 ml), the reaction solution was concentrated, and the residue was washed with a large amount of water and dried to obtain the title compound (c) as a colorless solid.
125 mg of -1) was obtained. Example 1 (a) 4″,6″-O-cyclohexylidene-3′-deoxy-3′-epi-6′-N-methoxycarbonyl-1,3,3″-tri-N-tosyl-2 ′,3′−(N
-Tosyl) production of epiminokanamycin B [referred to as compound (d-1)]

【化】 参考䟋で埗られた化合物−の140mg
を0.5M氎酞化ナトリりムを含む無氎メタノヌル
の3.2mlに溶解し、宀枩にお時間反応せしめた。
反応液を䞭性たで1M塩酞で䞭和埌に濃瞮し、残
枣を倧量の氎で氎掗し也燥するず、無色固䜓ずし
お衚題化合物−の117mgを埗た。 (ロ) 4″6″−−シクロヘキシリデン−3′−デオ
キシ−3′−フルオロ−6′−−メトキシカルボ
ニル−2′3″−テトラ−−トシルカ
ナマむシンBB〔化合物−ずいう〕の
生成
[Chemical formula] 140 mg of compound (c-1) obtained in Reference Example 2
was dissolved in 3.2 ml of anhydrous methanol containing 0.5 M sodium hydroxide, and reacted at room temperature for 3 hours.
The reaction solution was neutralized with 1M hydrochloric acid and concentrated, and the residue was washed with a large amount of water and dried to obtain 117 mg of the title compound (d-1) as a colorless solid. (b) 4″,6″-O-cyclohexylidene-3′-deoxy-3′-fluoro-6′-N-methoxycarbonyl-1,3,2′,3″-tetra-N-tosylkanamycin BB Production of [referred to as compound (e-1)]

【化】 前項(ã‚€)で埗られた化合物−の116.4mg
をゞメチルホルムアミド2.3mlに溶解し、フツ化
氎玠カリりムKHF2の37mgを加え、150℃で
時間攪拌䞋に反応した。反応液を冷华し、飜和
炭酞氎玠ナトリりム液47mlにあけ、沈柱を取
し、氎掗した。これをシリカゲルカラムクロマト
グラフむヌワコヌゲル−200 、クロロホ
ルム−メタノヌル30で展開にかけ化合
物−を䞻成分ずに含む淡黄色固䜓ずしお
粗補の化合物−の75.7mgを埗た。本物質
は倫々の混成成分に分離できなか぀たが、その
19F NMRスペクトル重ピリゞン内、CFCl3内
郚暙準においお−193.4ppmに3′−に由来す
る明瞭なダブルトリプレツトJF,H-355H2JF,H-2
JF,H-412H2を認めた。 (ハ) 3′−フルオロ−3′−デオキシ−カナマむシン
化合物の生成 −50℃に冷华した液䜓アンモニア玄23ml䞭に金
属ナトリりム玄140mgを加え、青色溶液を埗た。
これにテトラヒドロフラン2.3mlに溶解した粗補
の化合物−前項(ロ)の生成物の75.7mg
を加え、同枩床で分間攪拌埌、メタノヌルを加
え無色溶液を埗たトシル基脱離、アンモニア
ずメタノヌルを蒞発埌、残枣を氎mlに溶解し、
80℃で時間加熱した。生成した氎酞化ナトリり
ムの䜜甚によ぀お加氎分解が起り、メトキシカル
ボニル基が脱離した。反応液にダり゚ツクス
Dowex50W×H+型暹脂10mlを加え、こ
れに吞着せしめ、䞀倜攟眮したシクロヘキシリ
デン基の脱離。生成した脱保護生成物を暹脂ご
ず同䞀の暹脂mlのカラムの䞊郚に加え、氎掗
埌、1N−アンモニア氎にお溶出し、ニンヒドリ
ン陜性郚分を集めた。埗られた生成物をさらに
CM−セフアデツクスSephadex−25NH+ 4
型カラムでアンモニア氎を展開剀0.05→
0.15Nずしお展開し、3′−フルオロ−3′−デオ
キシ−カナマむシンを含む郚分を集め濃瞮し
た。9.8mgの癜色粉末ずしお玔粋な3′−フルオロ
−3′−デオキシカナマむシンを埗た。化合物(d)
からの収率玄19。 旋光床〔α〕22 D125°c0.6、氎 1H−NMRデヌタ20ND3D2䞭 ÎŽ447ダブルトリプレツト、−3′JF,H-354H2
JF,H-2JF,H-410H25.03ダブレツト、−
1″J1″,2″3.8H2、5.34トリプレツト、−1′

J1′,2′J1′,F-33.8H2 実斜䟋  (ã‚€) 3′−−ベンゞルスルホニル−4′−6′−
−カルボニル−4″6″−−シクロヘキシリ
デン−2′3″−テトラ−−トシルカ
ナマむシン〔化合物−ずいう〕前出
の日本化孊䌚誌1982幎10号1707頁参照 の135mgを0.5M氎酞化ナトリりムを含む無氎メタ
ノヌルの2.7mlに溶解し、宀枩にお時間攟眮し
お反応させた。以埌、実斜䟋(ã‚€)ず同様に反応液
を凊理し、化合物−の116mgを埗た。 (ロ) 前項(ã‚€)で埗られた化合物−の55mgを
ゞメチルホルムアミドmlに溶解し、フツ化氎
玠ナトリりムNaHF2の15mgを加え、150℃
で時間攪拌した。 以埌、実斜䟋(ロ)ず同様に凊理し、粗補の化
合物−の36mgを埗た。この粗補の化合
物−を実斜䟋(ハ)ず同様に凊理する
ず、3′−フルオロ−3′−デオキシカナマむシン
が埗られた。 実斜䟋  (ã‚€) 4″6″−−む゜プロピリデン−6′−−ベ
ンゞルオキシカルボニル−2′3″−テ
トラ−−ベンゞルスルホニル−3′−フルオロ
−3′−デオキシ−カナマむシン〔化合物
−ずいう〕の生成 3′−−ベンゞルスルホニル−4′−6′−
−カルボニル−4″6″−−む゜プロピリデン−
2′3″−テトラ−−ベンゞルスルホニ
ルカナマむシン〔化合物−ずいう〕を
ベンゞルアルコヌルの存圚䞋に氎酞化ナトリりム
で凊理しお調補されお䞔぀䞋蚘の匏
[Chemical value] 116.4 mg of compound (d-1) obtained in the previous section (a)
was dissolved in 2.3 ml of dimethylformamide, 37 mg of potassium hydrogen fluoride (KHF 2 ) was added, and the mixture was reacted at 150° C. for 2 hours with stirring. The reaction solution was cooled and poured into 47 ml of saturated sodium bicarbonate solution, and the precipitate was collected and washed with water. This was subjected to silica gel column chromatography (6 g of Wako Gel C-200, developed with chloroform-methanol (30:1)) to obtain crude compound (e-1) as a pale yellow solid containing compound (c-1) as the main component. 75.7 mg of Although this substance could not be separated into its respective mixed components,
In the 19 F NMR spectrum (in deuterated pyridine, CFCl 3 internal standard), a clear double triplet originating from 3'-F (J F,H-3 55H 2 , J F,H-2
J F,H-4 12H 2 ) was recognized. (c) Production of 3'-fluoro-3'-deoxy-kanamycin B (compound) About 140 mg of metallic sodium was added to about 23 ml of liquid ammonia cooled to -50°C to obtain a blue solution.
To this, 75.7 mg of crude compound (e-1) (product of the previous item (b)) was dissolved in 2.3 ml of tetrahydrofuran.
After stirring at the same temperature for 5 minutes, methanol was added to obtain a colorless solution (tosyl group eliminated). After evaporating ammonia and methanol, the residue was dissolved in 6 ml of water.
Heated at 80°C for 1 hour. Hydrolysis occurred due to the action of the generated sodium hydroxide, and the methoxycarbonyl group was eliminated. 10 ml of Dowex 50W x 2 (H + type) resin was added to the reaction solution, and the resin was adsorbed thereon and left overnight (elimination of cyclohexylidene group). The resulting deprotected product was added together with the resin to the top of a column containing 3 ml of the same resin, washed with water, and eluted with 1N aqueous ammonia to collect the ninhydrin-positive portion. The obtained product is further
CM-Sephadex C-25 (NH + 4
type) column with ammonia water as a developing agent (0.05→
0.15N), and the portion containing 3'-fluoro-3'-deoxy-kanamycin B was collected and concentrated. Pure 3'-fluoro-3'-deoxykanamycin B was obtained as 9.8 mg of white powder. Compound (d)
The yield is about 19%. Optical rotation: [α] 22 D +125° (c0.6, water) 1 H-NMR data (in 20% ND 3 , D 2 O): ÎŽ447 (double triplet, H-3′, J F,H- 3 54H 2 ,
J F, H-2 = J F, H-4 = 10H 2 ), 5.03 (double, H-
1″, J 1 ″ , 2 ″3.8H 2 ), 5.34 (triplet, H-1′

J1 ' ,2 '= J1 ' ,F-3 =3.8H2 ) Example 2 (a) 3'-O-benzylsulfonyl-4'-0,6'-
N-carbonyl-4″,6″-O-cyclohexylidene-1,3,2′,3″-tetra-N-tosylkanamycin B [referred to as compound (c-2)] (Journal of the Chemical Society of Japan 1982 mentioned above) 10, p. 1707) was dissolved in 2.7 ml of anhydrous methanol containing 0.5 M sodium hydroxide and left to react at room temperature for 3 hours.Then, the reaction was carried out in the same manner as in Example 1 (a). The solution was treated to obtain 116 mg of compound (d-1). (b) 55 mg of compound (d-1) obtained in the previous section (a) was dissolved in 1 ml of dimethylformamide, and dissolved in sodium hydrogen fluoride (NaHF). Add 15mg of 2 ) and heat to 150℃.
The mixture was stirred for 2 hours. Thereafter, it was treated in the same manner as in Example 1 (b) to obtain 36 mg of crude compound (e-1). This crude compound (e-1) was treated in the same manner as in Example 1 (c) to obtain 3'-fluoro-3'-deoxykanamycin B. Example 3 (a) 4″,6″-O-isopropylidene-6′-N-benzyloxycarbonyl-1,3,2′,3″-tetra-N-benzylsulfonyl-3′-fluoro-3′ -deoxy-kanamycin B [compound (e
-2)] 3′-O-benzylsulfonyl-4′-O,6′-N
-Carbonyl-4″,6″-O-isopropylidene-
1,3,2',3''-tetra-N-benzylsulfonylkanamycin B [referred to as compound (c-2)] is prepared by treating with sodium hydroxide in the presence of benzyl alcohol and has the following formula:

【化】 で瀺される6′−−ベンゞルオキシカルボニル−
3″−トリ−−ベンゞルスルホニル−
2′3′−−ベンゞルスルホニル゚ピミノ−
3′−デオキシ−3′−゚ピ−4″6″−−む゜プロ
ピリデンカナマむシン〔化合物−の80
mgをゞメチルホルムアミド1.5mlに溶解し、フツ
化氎玠カリりム25mgを加え、150°で時間攪拌し
お反応した。反応液を以埌、実斜䟋(ロ)ず同様に
凊理するず、衚題化合物−の粗補物44mg
を埗た。 (ロ) 3′−フルオロ−3′−デオキシカナマむシン
の生成 前項(ã‚€)の粗補生成物をテトラヒドロフラン1.5
mlに溶解し、その溶液を、−50℃に冷华した液䜓
アンモニア玄15ml䞭に金属ナトリりム玄80mgを加
えお青色にな぀た液に加えた。分間反応させた
ベンゞルスルホニル基ずベンゞルオキシカルボ
ニル基ずの脱離埌にメタノヌルを加えお反応を
䞭止した。アンモニアずメタノヌルを蒞発埌、残
枣を氎に溶解し、これにダり゚ツクスDowex
50W×H+型暹脂mlを加え、生成物を吞着
せしめ、䞀倜攟眮したむ゜プロピリデン基脱
離。埗られた脱保護生成物を暹脂ごず同䞀の暹
脂mlのカラムの䞊郚に加え、氎掗埌、1Nアン
モニア氎にお溶出し、ニンヒドリン陜性郚分を集
めた。以埌、実斜䟋(ハ)の粟補法ず同様にCM−
セフアデツクスカラムで粟補するず、3′−フルオ
ロ−3′−デオキシカナマむシンの4.7mgを埗た。 実斜䟋  (ã‚€) 4″6″−−シクロヘキシリデン−6′−−
メトキシカルボニル−−2′3″−テトラ
−−トリフルオロメタンスルホニル−3′−フ
ルオロ−3′−デオキシカナマむシン〔化合物
−ずいう〕の生成 3′−−ベンゞルスルホニル−4′−6′−
−カルボニル−4″6″−−シクロヘキシリデン
−2′3″−テトラ−−トリフルオロメ
タンスルホニルカナマむシン〔化合物−
ずいう〕を無氎メタノヌル䞭氎酞化ナトリりムで
凊理しお調補されお䞔぀䞋蚘の匏
6′-N-benzyloxycarbonyl- represented by
1,3,3″-tri-N-benzylsulfonyl-
2',3'-(N-benzylsulfonyl)epimino-
3′-deoxy-3′-epi-4″,6″-O-isopropylidenekanamycin B [compound (d-2) 80
mg was dissolved in 1.5 ml of dimethylformamide, 25 mg of potassium hydrogen fluoride was added, and the mixture was stirred at 150° for 2 hours to react. The reaction solution was then treated in the same manner as in Example 1 (b) to obtain 44 mg of the crude title compound (e-2).
I got it. (b) 3'-Fluoro-3'-deoxykanamycin B
Formation of the crude product from the previous section (a) in 1.5% tetrahydrofuran
ml, and the solution was added to a solution that turned blue by adding about 80 mg of metallic sodium to about 15 ml of liquid ammonia cooled to -50°C. After reacting for 5 minutes (elimination of benzylsulfonyl group and benzyloxycarbonyl group), methanol was added to stop the reaction. After evaporating the ammonia and methanol, the residue is dissolved in water and added to Dowex.
5 ml of 50W x 2 (H + type) resin was added to adsorb the product and left overnight (isopropylidene group elimination). The resulting deprotected product was added to the top of a 2 ml column containing the same resin, washed with water, and eluted with 1N aqueous ammonia to collect the ninhydrin-positive portion. Thereafter, CM-
Purification with a Sephadex column yielded 4.7 mg of 3'-fluoro-3'-deoxykanamycin B. Example 4 (a) 4″,6″-O-cyclohexylidene-6′-N-
Production of methoxycarbonyl-1,3-2',3''-tetra-N-trifluoromethanesulfonyl-3'-fluoro-3'-deoxykanamycin B [referred to as compound (e-3)] 3'-O-benzylsulfonyl −4′−O,6′−N
-Carbonyl-4″,6″-O-cyclohexylidene-1,3,2′,3″-tetra-N-trifluoromethanesulfonylkanamycin B [Compound (c-3)
] with sodium hydroxide in anhydrous methanol and has the following formula:

【化】 で瀺される4″6″−−シクロヘキシリデン−
3′−デオキシ−3′−゚ピ−6′−−メトキシカル
ボニル−3″−トリ−−トリフルオロメ
タンスルホニル−2′3′−−トリフルオロメ
タンスルホニル゚ピミノカナマむシン〔化合
物−ずいう〕の110mgをゞメチルホルム
アミド2.5mlに溶解する。この溶液にフツ化氎玠
カリりム40mgを加え150℃で時間攪拌しお反応
させた。反応液を以埌、実斜䟋(ロ)ず同様に凊理
するず、衚題化合物−の粗補物72mgを埗
た。 (ロ) 3′−フルオロ−3′−デオキシカナマむシン
の生成 前項(ã‚€)の粗補生成物を0.6M氎酞化ナトリりム
氎mlに溶解し、その溶液を80℃で時間加熱し
た。この操䜜でトリフルオロメタンスルホニル基
ずメトキシカルボニル基が脱離した。反応液にダ
り゚ツクスDowex50W×H+型暹脂
mlを加え、生成物をこれに吞着せしめ䞀倜攟眮し
たシクロヘキシリデン基脱離。脱保護生成物
を暹脂ごず同䞀の暹脂mlのカラムの䞊郚に加
え、氎掗埌、1Nアンモニア氎で溶出し、ニンヒ
ドリン陜性郚分を集めた。埗られた物質をさらに
実斜䟋(ハ)のようにCM−セフアデツクス
Sephadex−25NH4 +型で粟補するず、
3′−フルオロ−3′−デオキシカナマむシンの10
mgを埗た。 実斜䟋  (ã‚€) 4″6″−ベンゞリデン−6′−−゚トキシカ
ルボニル−3′−デオキシ−3′−フルオロ−
2′3″−テトラ−−メシルカナマむシン
〔化合物−ずいう〕の生成 3′−−ベンゞルスルホニル−4′−6′−
−カルボニル−4″6″−−ベンゞリデン−
2′3″−テトラ−−メシルカナマむシン
〔化合物−ずいう〕を無氎゚タノヌル䞭
氎酞化カリりムで凊理しお調補されお䞔぀䞋蚘の
匏
4″,6″-O-cyclohexylidene- represented by
3'-Deoxy-3'-epi-6'-N-methoxycarbonyl-1,3,3''-tri-N-trifluoromethanesulfonyl-2',3'-(N-trifluoromethanesulfonyl)epiminokanamycin B 110 mg of [compound (d-3)] was dissolved in 2.5 ml of dimethylformamide. 40 mg of potassium hydrogen fluoride was added to this solution and stirred at 150°C for 2 hours to react.The reaction solution was used as Example 1. By treating in the same manner as in (B), 72 mg of the crude title compound (e-3) was obtained. (B) 3'-Fluoro-3'-deoxykanamycin B
Production of the crude product from the previous section (a) was dissolved in 5 ml of 0.6M sodium hydroxide solution, and the solution was heated at 80°C for 1 hour. This operation removed the trifluoromethanesulfonyl group and the methoxycarbonyl group. Dowex 50W x 2 (H + type) resin 8 in the reaction solution
ml was added thereto, and the product was adsorbed thereto and left overnight (cyclohexylidene group eliminated). The deprotected product was added to the top of a 3 ml column containing the same resin, washed with water, and eluted with 1N aqueous ammonia to collect the ninhydrin-positive portion. When the obtained substance is further purified with CM-Sephadex C-25 (NH 4 + form) as in Example 1 (c),
10 of 3'-fluoro-3'-deoxykanamycin B
I got mg. Example 5 (a) 4″,6″-benzylidene-6′-N-ethoxycarbonyl-3′-deoxy-3′-fluoro-1,
Production of 3,2',3''-tetra-N-mesylkanamycin B [referred to as compound (e-4)] 3'-O-benzylsulfonyl-4'-O,6'-N
-carbonyl-4″,6″-O-benzylidene-1,
3,2′,3″-tetra-N-mesylkanamycin B
It is prepared by treating [referred to as compound (c-4)] with potassium hydroxide in anhydrous ethanol and has the following formula:

【化】 で瀺される4″6″−−ベンゞリデン−3′−デオ
キシ−3′−゚ピ−6′−−゚トキシカルボニル−
3″−トリ−−メシル−2′3′−−メ
シル゚ピミノカナマむシン〔化合物−
ずいう〕の45mgをゞメチルホルムアミドの1.1ml
に溶解し、フツ化氎玠カリりム18mgを加え、150
℃で時間攪拌しお反応させた。その反応液を以
埌、実斜䟋(ロ)ず同様に凊理するず、衚題化合物
−の粗補物の28mgを埗た。 (ロ) 3′−フルオロ−3′−デオキシカナマむシン
の生成 前項(ã‚€)の粗補物を実斜䟋(ハ)ず同様な方法で脱
保護凊理、粟補するず、目的の衚題化合物が埗ら
れた。
4″,6″-O-benzylidene-3′-deoxy-3′-epi-6′-N-ethoxycarbonyl- represented by
1,3,3″-tri-N-mesyl-2′,3′-(N-mesyl)epiminokanamycin B [Compound (d-4)
] 45mg of 1.1ml of dimethylformamide
Add 18 mg of potassium hydrogen fluoride to 150
The mixture was stirred and reacted at ℃ for 2 hours. The reaction solution was then treated in the same manner as in Example 1 (b) to obtain 28 mg of the title compound (e-4) as a crude product. (b) 3'-Fluoro-3'-deoxykanamycin B
Production of the crude product obtained in the previous section (a) was deprotected and purified in the same manner as in Example 1 (c) to obtain the desired title compound.

Claims (1)

【特蚱請求の範囲】  次匏 【化】 で瀺される3′−フルオロ−3′−デオキシカナマむ
シン及びその酞付加塩。  次の䞀般匏 【化】 〔匏䞭、はスルホニル基型のアミノ保護基以
倖のアミノ保護基、又は氎玠原子であり、はス
ルホニル基型であるアミノ保護基であり、はア
ルキルスルホニル基、アラルキルスルホニル基又
はアリヌルスルホニル基であり、及びは倫々
に氎玠原子又は䟡のヒドロキシル保護基であ
り、あるいは及びは共同しお個の䟡のヒ
ドロキシル保護基を圢成する〕で瀺される3′−デ
オキシ−3′−゚ピ−2′3′−゚ピミノ−カナマむ
シンの保護誘導䜓を次匏 MeHF2  〔匏䞭、Meはアルカリ金属原子である〕のア
ルカリ金属氎玠ゞ北化物ず有機溶媒䞭で加熱䞋に
反応させお次の䞀般匏 【化】 〔匏䞭、及びは前蚘ず同じ意
味である〕で瀺される3′−フルオロ−3′−デオキ
シカナマむシン化合物を生成させ、さらに匏
の化合物䞭にアミノ保護基及び
又はヒドロキシル保護基が残留す
る堎合には、これら保護基およびスルホニル基
を公知方法で脱離するこずを特城ずする、
次匏 【化】 で瀺される3′−フルオロ−3′−デオキシカナマむ
シンの補造法。  3′−デオキシ−3′−゚ピ−2′3′−゚ピミノ
−カナマむシン化合物ずアルカリ金属氎
玠ゞ北化物ずの反応に甚いる有機溶媒はゞメチル
ホルムアミド、ゞメチルアセトアミド、アセトニ
トリル又はスルホランである特蚱請求の範囲第
項に蚘茉の方法。  アルカリ金属氎玠ゞ北化物はナトリりム氎玠
ゞ北化物又はカリりム氎玠ゞ北化物である特蚱請
求の範囲第項に蚘茉の方法。  次の䞀般匏 【化】 〔匏䞭、はスルホニル基型のアミノ保護基で
あり、及びは倫々に氎玠原子又は䟡のヒド
ロキシル保護基であるか、あるいは及びは共
同しお個の䟡ヒドロキシル保護基を圢成し、
はず同じアルキルスルホニル基、アラルキル
スルホニル基又はアリヌルスルホニル基であり、
はず同じ又は異なるアルキルスルホニル基、
アラルキルスルホニル基又はアリヌルスルホニル
基であり、はヒドロキシル保護基又は氎玠原子
である〕で瀺される3′−−スルホニル−6′−
4′−−カルボニル−カナマむシンの保護
誘導䜓をメタノヌル又ぱタノヌル又はベンゞル
アルコヌルの存圚䞋に氎酞化アルカリ金属ず反応
させお次の䞀般匏 【化】 〔匏䞭、及びは前蚘ず同じ意
味をもち、A′はメトキシカルボニル基又ぱト
キシカルボニル基又はベンゞルオキシカルボニル
基の圢のアミノ保護基である〕で瀺される3′−デ
オキシ−3′−゚ピ−2′3′−゚ピミノ−6′−−
アルコキシ−又はアラルキルオキシ−カルボニル
−カナマむシンの保護誘導䜓を生成し、次に匏
′の化合物を盎ちに甚いるか、若しくは匏
′の化合物からヒドロキシル保護基
の䞀郚又は党郚を脱離しお埗られた3′−
デオキシ−3′−゚ピ−2′3′−゚ピミノ−6′−
−保護カナマむシン化合物を甚いお、これを次
匏 MeHF2  〔匏䞭、Meはアルカリ金属原子である〕のア
ルカリ金属氎玠ゞ北化物ず有機溶媒䞭で加熱䞋に
反応させお次の䞀般匏 【化】 〔匏䞭、A′はメトキシカルボニル基又ぱト
キシカルボニル基又はベンゞルオキシカルボニル
基の圢のアミノ保護基であり、は前蚘ず同じア
ミノ保護基であり、X′及びY′は前蚘の
及びず同じ意味をも぀か、あるいはX′及び
Y′が倫々に氎玠原子である〕で瀺される3′−フル
オロ−3′−デオキシカナマむシン化合物を生成
させ、さらに匏′の化合物䞭にアミノ保護
基及び又はヒドロキシル保護基
が残留する堎合には、これら保護基お
よびスルホニル基を公知方法で脱離するこ
ずを特城ずする、次匏 【化】 で瀺される3′−フルオロ−3′−デオキシカナマむ
シンの補造法。  3′−デオキシ−3′−゚ピ−2′3′−゚ピミノ
−カナマむシン化合物′ずアルカリ金属
氎玠ゞ北化物ずの反応に甚いる有機溶媒はゞメチ
ルホルムアミド、ゞメチルアセトアミド、アセト
ニトリル又はスルホランである特蚱請求の範囲第
項に蚘茉の方法。  アルカリ金属氎玠ゞ北化物はナトリりム氎玠
ゞ北化物又はカリりム氎玠ゞ北化物である特蚱請
求の範囲第項に蚘茉の方法。
[Scope of Claims] 3'-Fluoro-3'-deoxykanamycin B represented by the following formula: and its acid addition salt. 2 Following general formula group, aralkylsulfonyl group or arylsulfonyl group, and X and Y are each a hydrogen atom or a monovalent hydroxyl protecting group, or X and Y together form a divalent hydroxyl protecting group The protected derivative of 3'-deoxy-3'-epi- 2 ',3'-epimino-kanamycin B represented by A 3'-fluoro- 3'-deoxykanamycin B compound is produced, and when amino protecting groups (A, B) and/or hydroxyl protecting groups (X, Y) remain in the compound of formula (), these protecting groups and characterized by removing the sulfonyl group (Q) by a known method,
A method for producing 3'-fluoro-3'-deoxykanamycin B represented by the following formula: 3. The organic solvent used in the reaction of 3'-deoxy-3'-epi-2',3'-epimino-kanamycin B compound () and alkali metal hydrogen difluoride is dimethylformamide, dimethylacetamide, acetonitrile or sulfolane. Claim 2
The method described in section. 4. The method according to claim 2, wherein the alkali metal hydrogen difluoride is sodium hydrogen difluoride or potassium hydrogen difluoride. 5 The following general formula: [In the formula, B is a sulfonyl group-type amino protecting group, and X and Y are each a hydrogen atom or a monovalent hydroxyl protecting group, or to form one divalent hydroxyl protecting group,
Q is the same alkylsulfonyl group, aralkylsulfonyl group or arylsulfonyl group as B,
Z is the same or different alkylsulfonyl group as Q,
3'-O-sulfonyl-6'-, which is an aralkylsulfonyl group or an arylsulfonyl group, and V is a hydroxyl protecting group or a hydrogen atom.
The protected derivative of N,4'-O-carbonyl-kanamycin B is reacted with an alkali metal hydroxide in the presence of methanol or ethanol or benzyl alcohol to form the following general formula [where B, X, Y, 3'-deoxy-3'-epi-2' where Q and V have the same meanings as above and A' is an amino protecting group in the form of a methoxycarbonyl group or an ethoxycarbonyl group or a benzyloxycarbonyl group. ,3'-epimino-6'-N-
Either a protected derivative of alkoxy- or aralkyloxy-carbonyl-kanamycin B is generated and then a compound of formula (') is used immediately, or a compound of formula (') is formed with a hydroxyl protecting group (V,
3′- obtained by eliminating part or all of X, Y)
Deoxy-3'-epi-2',3'-epimino-6'-N
-Using a protected kanamycin B compound, it is reacted with an alkali metal hydrogen difluoride of the following formula MeHF 2 () [wherein Me is an alkali metal atom] under heating in an organic solvent to form the following general Formula: [wherein A' is an amino-protecting group in the form of a methoxycarbonyl group, an ethoxycarbonyl group or a benzyloxycarbonyl group, B is the same amino-protecting group as above, and V, X' and Y' is the above V,
have the same meaning as X and Y, or
3'-fluoro-3'-deoxykanamycin B compound represented by When the hydroxyl protecting groups (X, Y) remain, these protecting groups and the sulfonyl group (Q) are removed by a known method. Method for producing 3'-deoxykanamycin B. 6 The organic solvent used for the reaction of 3'-deoxy-3'-epi-2',3'-epimino-kanamycin B compound (') and alkali metal hydrogen difluoride is dimethylformamide, dimethylacetamide, acetonitrile or sulfolane. A method according to certain claim 5. 7. The method according to claim 5, wherein the alkali metal hydrogen difluoride is sodium hydrogen difluoride or potassium hydrogen difluoride.
JP59262700A 1984-12-14 1984-12-14 3'-fluoro-3'-deoxykanamycin b, and preparation thereof Granted JPS61140597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59262700A JPS61140597A (en) 1984-12-14 1984-12-14 3'-fluoro-3'-deoxykanamycin b, and preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59262700A JPS61140597A (en) 1984-12-14 1984-12-14 3'-fluoro-3'-deoxykanamycin b, and preparation thereof

Publications (2)

Publication Number Publication Date
JPS61140597A JPS61140597A (en) 1986-06-27
JPH0582395B2 true JPH0582395B2 (en) 1993-11-18

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Application Number Title Priority Date Filing Date
JP59262700A Granted JPS61140597A (en) 1984-12-14 1984-12-14 3'-fluoro-3'-deoxykanamycin b, and preparation thereof

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JPS61140597A (en) 1986-06-27

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