Process for 3.beta.-aminoazetidin-2-ones
    1.
    发明授权
    Process for 3.beta.-aminoazetidin-2-ones 失效
    3β-氨基吖丁啶-2-酮的方法

    公开(公告)号:US4243587A

    公开(公告)日:1981-01-06

    申请号:US41282

    申请日:1979-05-21

    IPC分类号: C07D205/085 C07D498/04

    CPC分类号: C07D205/085

    摘要: 1-[.alpha.-(Carboxy)-4-hydroxybenzyl]-3.beta.-aminoazetidin-2-one esters are prepared by converting 2-acyl-3,3-dialkyl-7-oxo-.alpha.-[4-(benzyloxy)phenyl]-4-thia-2,6-diazabicyclo[3.2.0]-heptane-6-acetic acid esters with mercuric acetate in an aqueous organic solvent mixture, e.g., in aqueous methanol, to 7-oxo-3-phenyl-.alpha.-[4-(benzyloxy)phenyl]-4-oxa-2,6-diazabicyclo[3.2.0]hept-2-ene-1-acetic acid esters and the latter are reacted with PCl.sub.5 and pyridine to provide the monocyclic 1-[.alpha.-(carboxy)-4-benzyloxybenzyl]-3.beta.-(.alpha.-chlorobenzylidene-amino)-4-chloroazetidin-2-one esters. Reduction of the dichloro azetidin-2-one with an organo tin hydride and azobisisobutyronitrile affords the deschloro, 1-[.alpha.-(carboxy)-4-benzyloxybenzyl]-3.beta.-benzylideneaminoazetidin-2-one ester. The latter is hydrolyzed and the 4-benzyloxy group is cleaved via catalytic hydrogenolysis to yield an ester of 1-[.alpha.-(carboxy)-4-hydroxybenzyl]-3.beta.-aminoazetidin-2-one. The 3.beta.-amino ester is useful for the preparation of the antibiotic FR 1923 (nocardicin).

    摘要翻译: 通过将2-酰基-3,3-二烷基-7-氧代-α-[4-(苄氧基)苯基 ] -4-硫杂-2,6-二氮杂双环[3.2.0] - 庚烷-6-乙酸酯与乙酸汞在含水有机溶剂混合物(例如甲醇水溶液)中加入到7-氧代-3-苯基-α - [4-(苄氧基)苯基] -4-氧杂-2,6-二氮杂双环[3.2.0]庚-2-烯-1-乙酸酯,后者与PCl5和吡啶反应,得到单环1- -3α-(α-羧基)-4-苄氧基苄基]-3β-(α-氯亚苄基 - 氨基)-4-氯氮杂环丁-2-酮酯。 用有机锡氢化物和偶氮二异丁腈还原二氯氮杂环丁烷-2-酮,得到脱氯,1- [α-(羧基)-4-苄氧基苄基]-3β-亚苄基氨基氮杂环丁-2-酮酯。 后者被水解,4-苄氧基通过催化氢解裂解,得到1- [α-(羧基)-4-羟基苄基]-3β-氨基吖丁啶-2-酮的酯。 3β-氨基酯可用于制备抗生素FR1923(诺卡霉素)。

    Intermediates for 3-aminoazetidin-2-ones
    2.
    发明授权
    Intermediates for 3-aminoazetidin-2-ones 失效
    3-氨基氮杂环丁烷-2-酮的中间体

    公开(公告)号:US4226767A

    公开(公告)日:1980-10-07

    申请号:US41281

    申请日:1979-05-21

    CPC分类号: C07D205/085

    摘要: 1-[.alpha.-(Carboxy)-4-hydroxybenzyl]-3.beta.-aminoazetidin-2-one esters are prepared by converting 2-acyl-3,3-dialkyl-7-oxo-.alpha.-[4-(benzyloxy)phenyl]-4-thia-2,6-diazabicyclo[3.2.0]heptane-6-acetic acid esters with mercuric acetate in an aqueous organic solvent mixture, e.g., in aqueous methanol, to 7-oxo-3-phenyl-.alpha.-[4-(benzyloxy)phenyl]-4-oxa-2,6-diazabicyclo[3.2.0]hept-2-ene-1-acetic acid esters and the latter are reacted with PCl.sub.5 and pyridine to provide the monocyclic 1-[.alpha.-(carboxy)-4-benzyloxybenzyl]-3.beta.-(.alpha.-chlorobenzylideneamino)-4-chloroazetidin-2-one esters. Reduction of the dichloro azetidin-2-one with an organo tin hydride and azobisisobutyronitrile affords the deschloro, 1-[.alpha.-(carboxy)-4-benzyloxybenzyl]-3.beta.-benzylideneaminoazetidin-2-one ester. The latter is hydrolyzed and the benzyloxy group is cleaved via catalytic hydrogenolysis to yield an ester of 1-[.alpha.-(carboxy)-4-hydroxybenzyl]-3.beta.-aminoazetidin-2-one. The 3.beta.-amino ester is useful for the preparation of the antibiotic FR 1923 (nocardicin).

    摘要翻译: 通过将2-酰基-3,3-二烷基-7-氧代-α-[4-(苄氧基)苯基 ] -4-硫杂-2,6-二氮杂双环[3.2.0]庚烷-6-乙酸酯与乙酸汞在含水有机溶剂混合物(例如甲醇水溶液)中加入到7-氧代-3-苯基-α- [4-(苄氧基)苯基] -4-氧杂-2,6-二氮杂双环[3.2.0]庚-2-烯-1-乙酸酯,后者与PCl5和吡啶反应,得到单环1- [ α - (羧基)-4-苄氧基苄基]-3β-(α-氯亚苄基氨基)-4-氯氮杂环丁-2-酮酯。 用有机锡氢化物和偶氮二异丁腈还原二氯氮杂环丁烷-2-酮,得到脱氯,1- [α-(羧基)-4-苄氧基苄基]-3β-亚苄基氨基氮杂环丁-2-酮酯。 将后者水解并通过催化氢解裂解苄氧基,得到1- [α-(羧基)-4-羟基苄基]-3β-氨基吖丁啶-2-酮的酯。 3β-氨基酯可用于制备抗生素FR1923(诺卡霉素)。

    4-Oxa 2,6 diazabicycloheptane derivatives
    3.
    发明授权
    4-Oxa 2,6 diazabicycloheptane derivatives 失效
    4-氧杂-2,6-二氮杂双环庚烷衍生物

    公开(公告)号:US4180507A

    公开(公告)日:1979-12-25

    申请号:US933707

    申请日:1978-08-15

    CPC分类号: C07D205/085

    摘要: 1-[.alpha.-(Carboxy)-4-hydroxybenzyl]-3.beta.-aminoazetidin-2-one esters are prepared by converting 2-acyl-3,3-dialkyl-7-oxo-.alpha.-[4-(benzyloxy)phenyl]-4-thia-2,6-diazabicyclo[3.2.0]-heptane-6-acetic acid esters with mercuric acetate in an aqueous organic solvent mixture, e.g., in aqueous methanol, to 7-oxo-3-phenyl-.alpha.-[4-benzyloxy)phenyl]-4-oxa-2,6-diazabicyclo[3.2.0]hept-2-ene-1-acetic acid esters and the latter are reacted with PCl.sub.5 and pyridine to provide the monocyclic 1-[.alpha.-(carboxy)-4-benzyloxybenzyl]-3.beta.-(.alpha.-chlorobenzylideneamino)-4-chloroazetidin-2-one esters. Reduction of the dichloro azetidin-2-one with an organo tin hydride and azobisisobutyronitrile affords the deschloro, 1-[.alpha.-(carboxy)-4-benzyloxybenzyl]-3.beta.-benzylideneaminoazetidin-2-one ester. The latter is hydrolyzed and the 4-benzyloxy group is cleaved via catalytic hydrogenolysis to yield an ester of 1-[.alpha.-(carboxy)-4-hydroxybenzyl]-3.beta.-aminoazetidin-2-one. The 3.beta.-amino ester is useful for the preparation of the antibiotic FR 1923 (nocardicin).

    摘要翻译: 通过将2-酰基-3,3-二烷基-7-氧代-α-[4-(苄氧基)苯基 ] -4-硫杂-2,6-二氮杂双环[3.2.0] - 庚烷-6-乙酸酯与乙酸汞在含水有机溶剂混合物(例如甲醇水溶液)中加入到7-氧代-3-苯基-α - [4-苄氧基)苯基] -4-氧杂-2,6-二氮杂双环[3.2.0]庚-2-烯-1-乙酸酯,后者与PCl5和吡啶反应,得到单环1- [ α - (羧基)-4-苄氧基苄基]-3β-(α-氯亚苄基氨基)-4-氯氮杂环丁-2-酮酯。 用有机锡氢化物和偶氮二异丁腈还原二氯氮杂环丁烷-2-酮,得到脱氯,1- [α-(羧基)-4-苄氧基苄基]-3β-亚苄基氨基氮杂环丁-2-酮酯。 后者被水解,4-苄氧基通过催化氢解裂解,得到1- [α-(羧基)-4-羟基苄基]-3β-氨基吖丁啶-2-酮的酯。 3β-氨基酯可用于制备抗生素FR1923(诺卡霉素)。

    Process for 3.beta.-aminoazetidin-2-ones
    4.
    发明授权
    Process for 3.beta.-aminoazetidin-2-ones 失效
    3 {62-氨基氮杂环丁烷-2-酮的方法

    公开(公告)号:US4127568A

    公开(公告)日:1978-11-28

    申请号:US775240

    申请日:1977-03-07

    CPC分类号: C07D205/085

    摘要: 1-[.alpha.-(Carboxy)-4-hydroxybenzyl]-3.beta.-aminoazetidin-2-one esters are prepared by converting 2-acyl-3,3-dialkyl-7-oxo-.alpha.-[4-(benzyloxy)phenyl]-4-thia-2,6-diazabicyclo[3.2.0]-heptane-6-acetic acid esters with mercuric acetate in an aqueous organic solvent mixture, e.g., in aqueous methanol, to 7-oxo-3-phenyl-.alpha.-[4-(benzyloxy)phenyl]-4-oxa-2,6-diazabicyclo[3.2.0]hept-2-ene-1-acetic acid esters and the latter are reacted with PCl.sub.5 and pyridine to provide the monocyclic 1-[.alpha.-(carboxy)-4-benzyloxybenzyl]-3.beta.-(.alpha.-chlorobenzylideneamino)-4-chloroazetidin-2-one esters. Reduction of the dichloro azetidin-2-one with an organo tin hydride and azobisisobutyronitrile affords the deschloro, 1-[.alpha.-(carboxy)-4-benzyloxybenzyl]-3.beta.-benzylideneaminoazetidin-2-one ester. The latter is hydrolyzed and the 4-benzyloxy group is cleaved via catalytic hydrogenolysis to yield an ester of 1-[.alpha.-(carboxy)-4-hydroxybenzyl]-3.beta.-aminoazetidin-2-one. The 3.beta.-amino ester is useful for the preparation of the antibiotic FR 1923 (nocardicin).

    摘要翻译: 通过将2-酰基-3,3-二烷基-7-氧代-α-[4-(苄氧基)苯基 ] -4-硫杂-2,6-二氮杂双环[3.2.0] - 庚烷-6-乙酸酯与乙酸汞在含水有机溶剂混合物(例如甲醇水溶液)中加入到7-氧代-3-苯基-α - [4-(苄氧基)苯基] -4-氧杂-2,6-二氮杂双环[3.2.0]庚-2-烯-1-乙酸酯,后者与PCl5和吡啶反应,得到单环1- -3α-(α-羧基)-4-苄氧基苄基]-3β-(α-氯亚苄基氨基)-4-氯氮杂环丁-2-酮酯。 用有机锡氢化物和偶氮二异丁腈还原二氯氮杂环丁烷-2-酮,得到脱氯,1- [α-(羧基)-4-苄氧基苄基]-3β-亚苄基氨基氮杂环丁-2-酮酯。 后者被水解,4-苄氧基通过催化氢解裂解,得到1- [α-(羧基)-4-羟基苄基]-3β-氨基吖丁啶-2-酮的酯。 3β-氨基酯可用于制备抗生素FR1923(诺卡霉素)。

    Acetoxy azetidin-2-one antibiotics via thiazolidine ring cleavage
    5.
    发明授权
    Acetoxy azetidin-2-one antibiotics via thiazolidine ring cleavage 失效
    乙酰氧基氮杂环丁烷-2-酮抗生素通过噻唑烷环裂解

    公开(公告)号:US4203896A

    公开(公告)日:1980-05-20

    申请号:US964401

    申请日:1978-11-28

    摘要: Monocyclic .beta.-lactam antibiotics of the formula ##STR1## wherein R is amino or acylamino, e.g., phenylacetylamino, phenylglycylamino and 2-[4-(3-amino-3-carboxypropoxy)phenyl]-2-hydroximinoacetylamino; R.sub.1 is H or ester forming group; R.sub.2 is H, --OCH.sub.3, --SCH.sub.3, or --CH.sub.3 ; and R.sub.3 is H or acetoxy; are useful antibacterials for controlling .beta.-lactamase producing gram-negative bacteria and other pathogens. Intermediates useful in the preparation of the antibiotics and a novel process for preparing 4.alpha.-acetoxy substituted azetidin-2-ones are provided.

    摘要翻译: 其中R为氨基或酰氨基的单环β-内酰胺抗生素,例如苯乙酰氨基,苯基甘氨酰氨基和2- [4-(3-氨基-3-羧基丙氧基)苯基] -2-羟肟基乙酰氨基; R1是H或酯形成基团; R2是H,-OCH3,-SCH3或-CH3; R3为H或乙酰氧基; 是用于控制β-内酰胺酶产生革兰氏阴性细菌和其他病原体的有用抗菌剂。 提供了可用于制备抗生素的中间体和制备4α-乙酰氧基取代的氮杂环丁烷-2-酮的新方法。

    Process for antibiotic FR 1923 and related compounds
    6.
    发明授权
    Process for antibiotic FR 1923 and related compounds 失效
    抗生素FR1923及相关化合物的制备方法

    公开(公告)号:US4158004A

    公开(公告)日:1979-06-12

    申请号:US739161

    申请日:1976-11-05

    摘要: Process for 1-[.alpha.-(carboxy)-4-hydroxy or protected-hydroxybenzyl]-3-acylamidoazetidin-2-one esters, useful intermediates for preparing antibiotic FR 1923, comprising the ring opening of a 2-acyl-3,3-dialkyl-7-oxo-.alpha.-[4-(protected-hydroxyphenyl]-4-thia-2,6-diazabicyclo[3.2.0]heptane-6-acetic acid, ester sulfoxide with a sulfonic acid and heat to provide a 3-acylamido-4-(2-oxaalkylthio)azetidin-2-one ester which on treatment with sulfuryl chloride affords a reaction product mixture that is then reduced with an organo tin hydride, e.g., tri(n-butyl)tin hydride, to the product. N-Deacylation of the 3-acylamido group followed by acylation with the 3-acyl portion of FR 1923, deblocking of the amino-protecting group and deesterification affords FR 1923.

    摘要翻译: 1- [α-(羧基)-4-羟基或被保护的羟基苄基] -3-酰基氨基吖丁啶-2-酮酯的方法,用于制备抗生素FR1923的有用中间体,包括2-酰基-3,3 - 二烷基-7-氧代-α-[4-(保护的 - 羟基苯基)-4-硫杂-2,6-二氮杂双环[3.2.0]庚烷-6-乙酸,与磺酸并加热的酯亚砜, 3-酰基酰胺基-4-(2-氧杂烷硫基)氮杂环丁-2-酮,其用硫酰氯处理得到反应产物混合物,然后用有机锡氢化物如三(正丁基)氢化锡还原至 产物,3-酰基酰氨基的N-去酰化,随后用FR 1923的3-酰基部分酰化,氨基保护基团的解封端和脱酯化,得到FR 1923。

    Substituted azetidin-2-one antibiotics
    7.
    发明授权
    Substituted azetidin-2-one antibiotics 失效
    取代的氮杂环丁烷-2-酮抗生素

    公开(公告)号:US4144232A

    公开(公告)日:1979-03-13

    申请号:US855841

    申请日:1977-11-30

    摘要: Monocyclic .beta.-lactam antibiotics of the formula ##STR1## WHEREIN R is amino or acylamino, e.g., phenylacetylamino, phenylglycylamino and 2-[4-(3-amino-3-carboxypropoxy)phenyl]-2-hydroximinoacetylamino; R.sub.1 is H or ester forming group; R.sub.2 is H, --OCH.sub.3, --SCH.sub.3, or --CH.sub.3 ; and R.sub.3 is H or acetoxy; are useful antibacterials for controlling .beta.-lactamase producing gram-negative bacteria and other pathogens. Intermediates useful in the preparation of the antibiotics and a novel process for preparing 4.alpha.-acetoxy substituted azetidin-2-ones are provided.

    摘要翻译: 式(I)的单环β-内酰胺抗生素,其中R为氨基或酰氨基,例如苯乙酰氨基,苯基甘氨酰氨基和2- [4-(3-氨基-3-羧基丙氧基)苯基] -2-羟肟基乙酰基氨基; R1是H或酯形成基团; R2是H,-OCH3,-SCH3或-CH3; R3为H或乙酰氧基; 是用于控制β-内酰胺酶产生革兰氏阴性细菌和其他病原体的有用抗菌剂。 提供了可用于制备抗生素的中间体和制备4α-乙酰氧基取代的氮杂环丁烷-2-酮的新方法。

    Process for 4-(D-3-amino-3-carboxypropoxy)-phenylglyoxylic acid oxime
derivatives
    8.
    发明授权
    Process for 4-(D-3-amino-3-carboxypropoxy)-phenylglyoxylic acid oxime derivatives 失效
    4-(D-3-氨基-3-羧基丙氧基) - 苯基乙醛酸肟衍生物的方法

    公开(公告)号:US4355172A

    公开(公告)日:1982-10-19

    申请号:US825344

    申请日:1977-08-17

    CPC分类号: C07D307/33 C07F7/1896

    摘要: Process for 4-(D-3-amino-3-carboxypropoxy)phenylglyoxylic acid oxime as an amino-protected ester comprising alkylating an amino-protected D-methionine silyl ester with an alkyl or benzyl iodide; cyclizing the alkylsulfonium iodide to an amino-protected D-homoserine lactone; hydrolyzing the lactone to an amino-protected D-homoserine in aqueous base; coupling, to form an ether, the amino-protected D-homoserine as an ester with an ester of 4-hydroxyphenylglyoxylic acid; and forming the oxime of the ether or alternatively coupling the D-homoserine ester with a protected-oxime of an esterified 4-hydroxyphenylglyoxylic acid. The product is useful in preparing the antibiotic FR 1923.

    摘要翻译: 包括用氨基保护的D-甲硫氨酸甲硅烷基酯与烷基或苄基碘烷基化的4-(D-3-氨基-3-羧基丙氧基)苯基乙醛酸肟作为氨基保护的酯的方法; 将烷基锍碘化物环化为氨基保护的D-高丝氨酸内酯; 将内酯水解成碱性水溶液中的氨基保护的D-高丝氨酸; 偶联,形成醚,氨基保护的D-高丝氨酸作为酯与4-羟基苯基乙醛酸的酯; 并形成醚的肟或者将D-高丝氨酸酯与被酯化的4-羟基苯基乙醛酸的保护肟偶联。 该产品可用于制备抗生素FR 1923。