cas 36923-17-8, 7-Amino-3-cephem-4-carboxylic acid | Articles data ｜lookchem

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36923-17-8

Articles about 36923-17-8Total 5 be found

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Preparation method of ceftizoxime intermediate 7-ANCA
The invention provides a preparation method of ceftizoxime intermediate 7-ANCA. 7-ACCA is adopted as a starting material, and subjected to reduction of a No.3-site double bond, iodine substitution andan elimination reaction to obtain the 7-ANCA. The metho
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(2019/11/21)

Synthesis method of ceftizoxime mother nucleus 7-ANCA
The invention discloses a synthesis method of ceftizoxime mother nucleus 7-ANCA. With CHS as a staring raw material, reduction of hydroxyl groups and removal of amino protection groups, namely, phenylacetyl groups on 7 bits and protection groups, namely,
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Paragraph 0035; 0036; 0037

(2016/12/12)

A 7 - aNCA method for the preparation of (by machine translation)
The present invention provides a synthetic Cefixime and Cefprozil important intermediate 7 - ANCA process, in order to 7 - ACA as raw materials, the amino protection, hydrolysis, cracking and deaminizating protection base 7 - ANCA, molar yield ≥ 54% (in order to 7 - ACA calculation), the operation is simple, the number of reaction steps is small, the current process in the middle part of the expensive raw materials, product quality is poor, phosphorus-containing waste, and the like, is suitable for industrial production. (by machine translation)
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(2017/05/02)

7β-Amino-cepham-3-ol-4-carboxylic acid compounds
The invention concerns 7β-amino-cepham-3-ol-4-carboxylic acid compounds, particularly esters thereof, and the N-substituted, especially N-acylated derivatives of such compounds, as well as the 3-O-esters of these compounds. They can be used as intermediates, for example, for the manufacture of the corresponding 3-unsubstituted 7β-amino-3-cephem-4-carboxylic acid compounds, which show outstanding pharmacological effects.
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(2008/06/13)

New β lactam antibiotics. Preparation and decarbonylation of 3 formylcephem compounds
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Peter,Bickel
p. 2044 - 2054
(2007/10/05)

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Chemical Properties

Melting Point: 215-218°C
Boiling Point: 536.9 °C at 760 mmHg
Flash Point:278.5 °C
Density: 1.699g/cm3
Solubility:Aqueous Acid (Slightly, Heated), DMSO (Slightly)
Storage Temp.:-20?C Freezer
Vapor Pressure: 0mmHg at 25°C
Refractive Index: 1.735
PKA: 2.92±0.50(Predicted)
PSA: 108.93000
LogP: -0.16450

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