Process for the preparation of polyamines and polyamine derivatives
    8.
    发明授权
    Process for the preparation of polyamines and polyamine derivatives 有权
    制备多胺和多胺衍生物的方法

    公开(公告)号:US06258976B1

    公开(公告)日:2001-07-10

    申请号:US09272102

    申请日:1999-03-19

    Abstract: Disclosed are processes for the preparation of compounds of the formula (I): H2N—(CH2)n—A—(CH2)m—NH2, or (II): H2N—(CH2)n—NH—C(═NR1)—NH—(CH2)m—NH2, wherein n and m are each independently an integer from 2 to 8; A is selected from the group consisting of —NR1—, —NR1—(CH2)r—NR1— and —NR1—(CH2)r—NR1—(CH2)z—NR1—, wherein r and z are an integer ranging from 2 to 8; and R1 is hydrogen or a protecting group having a carbonyl group.

    Abstract translation: 公开了制备式(I)化合物的方法:H 2 N-(CH 2)nA-(CH 2)m -NH 2或(II):H 2 N-(CH 2)n -NH-C(= NR 1)-NH - (CH 2)m -NH 2,其中n和m各自独立地为2至8的整数; A选自-NR1-,-NR1-(CH2)r-NR1-和-NR1-(CH2)r-NR1-(CH2)z-NR1-,其中r和z是从 2至8; 并且R 1是氢或具有羰基的保护基。

    Method for isolation of bulk anthocyanidins and other bioactives
    10.
    发明授权
    Method for isolation of bulk anthocyanidins and other bioactives 有权
    分离散花苷和其他生物活性物质的方法

    公开(公告)号:US08987481B1

    公开(公告)日:2015-03-24

    申请号:US14187245

    申请日:2014-02-22

    Applicant: Ramesh C Gupta

    Inventor: Ramesh C Gupta

    CPC classification number: C07D311/76 A23L5/43 C07D311/62

    Abstract: This invention describes a simple, rapid and cost-effective method to isolate bulk quantities of relatively pure and enriched anthocyanidins and other plant bioactives. The method is based on the principle of solubility. Some bioactives (anthocyanidins) were extracted in an aqueous solvent, transferred to a non-aqueous solvent and finally insolubilized by adding a miscible solvent in which the bioactive was insoluble. Thus, anthocyanidins were isolated from anthocyanin-enriched berries or non-enriched, dark-colored fruits, vegetables and grains by extraction of anthocyanins, acid hydrolysis, and extraction of the resulting anthocyanidins, followed by their insolubilization (precipitation). Some bioactives (hydrophobic and hydrophilic) were extracted in a solvent with high solubility and then directly insolubilized by adding a miscible solvent in which the bioactive was insoluble, for example, withaferin A from enriched Withania somnifera and punicalagins from enriched punica extract.

    Abstract translation: 本发明描述了分离大量相对纯的和富集的花青素和其它植物生物活性物的简单,快速和成本有效的方法。 该方法是基于溶解度的原理。 一些生物活性物质(花色素苷)在水性溶剂中提取,转移到非水溶剂中,最后通过加入其中生物活性不溶性的混溶溶剂而不溶解。 因此,通过提取花青素,酸水解和提取所得花青素,然后使其不溶(沉淀),从花青素浓缩的浆果或非浓缩的深色水果,蔬菜和谷物中分离出花青素。 一些生物活性物质(疏水性和亲水性)在高溶解度的溶剂中提取,然后通过加入其中生物活性不溶性的可混溶溶剂直接不溶,例如来自富集的有色金属藻的嗜铬蛋白A和来自浓缩的竹提取物的刺梧桐木。

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