A general and concise stereodivergent chiral pool approach toward trans-(4S,5R)- and cis-(4R,5R)-5-alkyl-4-methyl-γ-butyrolactones: Syntheses of (+)-trans- and (+)-cis-whisky and cognac lactones from d-(+)-mannitol
A straightforward synthesis of (+)-trans-(4S,5R)- and (+)-cis-(4R,5R)-whisky lactones starting from d-(+)-mannitol has been reported here in fewer number of efficient steps compared to existing literature processes involving d-mannitol as the chiral pool starting material. Chiron approach directly translated chirality of d-mannitol to one of the two chiral centers in these target molecules. Toward
从d -(+)-甘露醇开始直接合成 (+)-反式-(4 S ,5 R )- 和 (+)-顺式-(4 R ,5 R )-威士忌内酯的报道较少与涉及d-甘露醇作为手性池起始材料的现有文献方法相比,有效步骤的数量。Chiron 方法直接将d-甘露醇的手性转化为这些靶分子中的两个手性中心之一。为此,立体异构纯的反式和顺式在倒数第二步中形成碘甲基-γ-内酯。这两种作为通用的高级通用中间体也分别转化为 (+)-反式-(4 S ,5 R )- 和 (+)-顺式-(4 R ,5 R )-干邑内酯。据我们所知,迄今为止还没有报道从d-甘露醇开始合成干邑内酯。所有这些内酯都被确定为陈年酒精饮料的关键香气成分。
[EN] 4,6-SUBSTITUTED-PYRAZOLO[1,5-a]PYRAZINES AS JANUS KINASE INHIBITORS<br/>[FR] PYRAZOLO[1,5-A] PYRAZINES SUBSTITUÉES EN 4,6 EN TANT QU'INHIBITEURS DE LA JANUS KINASE
申请人:ARRAY BIOPHARMA INC
公开号:WO2016090285A1
公开(公告)日:2016-06-09
Compounds of Formula I: and stereoisomers and pharmaceutically acceptable salts and solvates thereof in which R1, R2, R3 and R4 have the meanings given in the specification, are inhibitors of one or more JAK kinases and are useful in the treatment of JAK kinase-associated diseases and disorders, such as autoimmune diseases, inflammatory diseases, rejection of transplanted organs, tissues and cells, as well as hematologic disorders and malignancies and their co-morbidities.
been developed using the diastereocontrolled addition of organometallics to a (R)-cyclohexylideneglyceraldehyde-derived ketone as the key steps. The addition of vinylmagnesiumbromide to the ketone gave a 1:1 diastereomeric mixture of separable tertiary alcohols, which were converted to the target erythri- and threitols. On the other hand, the reaction of a dithianyl anion with the ketone gave only the
PHARMACEUTICAL COMPOSITION COMPRISING A JAK-INHIBITING 4,6-SUBSTITUTED-PYRAZOLO[1,5-A]PYRAZINE COMPOUND
申请人:Array Biopharma Inc.
公开号:EP3878451A1
公开(公告)日:2021-09-15
Compounds of Formula I:
and stereoisomers and pharmaceutically acceptable salts and solvates thereof in which R1, R2, R3 and R4 have the meanings given in the specification, are inhibitors of one or more JAK kinases and are useful in the treatment of JAK kinase-associated diseases and disorders, such as autoimmune diseases, inflammatory diseases, rejection of transplanted organs, tissues and cells, as well as hematologic disorders and malignancies and their co-morbidities.
式 I 的化合物:
及其立体异构体和药学上可接受的盐及溶液,其中 R1、R2、R3 和 R4 具有说明书中给出的含义,是一种或多种 JAK 激酶的抑制剂,可用于治疗与 JAK 激酶相关的疾病和紊乱,如自身免疫性疾病、炎症性疾病、移植器官、组织和细胞的排斥反应,以及血液病和恶性肿瘤及其并发症。
4,6-substituted-pyrazolo[1,5-a]pyrazines as janus kinase inhibitors
申请人:ARRAY BIOPHARMA INC.
公开号:US10189845B2
公开(公告)日:2019-01-29
Compounds of Formula I: and stereoisomers and pharmaceutically acceptable salts and solvates thereof in which R1, R2, R3 and R4 have the meanings given in the specification, are inhibitors of one or more JAK kinases and are useful in the treatment of JAK kinase-associated diseases and disorders, such as autoimmune diseases, inflammatory diseases, rejection of transplanted organs, tissues and cells, as well as hematologic disorders and malignancies and their co-morbidities.
式 I 的化合物:及其立体异构体和药学上可接受的盐和溶液,其中 R1、R2、R3 和 R4 具有说明书中给出的含义,是一种或多种 JAK 激酶的抑制剂,可用于治疗 JAK 激酶相关的疾病和紊乱,如自身免疫性疾病、炎症性疾病、移植器官、组织和细胞的排斥反应,以及血液病和恶性肿瘤及其并发症。