101691-94-5Relevant articles and documents
CONDENSED RING HETEROCYCLIC COMPOUND
-
, (2015/06/17)
The ring-fused heterocyclic compound or a pharmaceutically acceptable salt thereof according to the present invention has a T-type calcium channel regulatory effect, and is useful, for example, as a medicament for treating and/or preventing pruritus. The present invention provides a ring-fused heterocyclic compound represented by the following general formula (I) or a pharmaceutically acceptable salt thereof and the like which has a T-type calcium channel regulatory effect and is useful as a therapeutic and/or preventive agent for pruritus, and the like. [wherein, R1 represents optionally substituted lower alkyl and the like, R2 represents optionally substituted lower alkyl and the like, R3 represents the formula (II): (wherein, n represents 0 or 1, R3a represents a hydrogen atom and the like, R3b represents a hydrogen atom and the like, and R3c represents a hydrogen atom and the like) and the like, Q represents a hydrogen atom and the like, and W1 represents a nitrogen atom and the like, W2 represents a nitrogen atom and the like]
Highly diastereoselective esterification of ketenes generated in situ from acyl chlorides with (R)-pantolactone derivatives
Yamagami, Takafumi,Hatsuda, Masanori,Utsugi, Masayuki,Kobayashi, Ryo,Moritani, Yasunori
supporting information, p. 7467 - 7470 (2013/12/04)
Our mechanistic investigations have revealed that Et3N is a key requirement for the highly diastereoselective formation of esters from the corresponding acyl chlorides with (R)-pantolactone via ketene-derived complexes. Furthermore, we have discovered that (R)-N-benzyl-pantolactam is a more effective chiral alcohol than (R)-pantolactone for the esterification of in situ generated ketenes. Ketene esterification with (R)-pantolactone derivatives is a powerful synthetic method for the synthesis of chiral α-arylpropionic acids. Our mechanistic investigations have revealed that Et3N is a key requirement for the predominant formation of ketenes from acyl chlorides, and (R)-N-benzylpantolactam was a much more effective chiral auxiliary.
NOVEL GLUCOKINASE ACTIVATORS AND METHODS OF USING SAME
-
Page/Page column 64, (2008/06/13)
Compounds are provided which are phosphonate and phosphinate activators and thus are useful in treating diabetes and related diseases and have the structure wherein is a heteroaryl ring; R4 is —(CH2)n-Z-(CH2)m—PO(OR7)(OR8), —(CH2)nZ-(CH2)m—PO(OR7)Rg, —(CH2)n-Z-(CH2)m—OPO(OR7)Rg, —(CH2)nZ—(CH2)m—OPO(R9)(R10), or —(CH2)nZ—(CH2)m—PO(R9)(R10);R5 and R6 are independently selected from H, alkyl and halogen;Y is R7(CH2)s or is absent; andX, n, Z, m, R4, R5, R6, R7, and s are as defined herein; or a pharmaceutically acceptable salt thereof. A method for treating diabetes and related diseases employing the above compounds is also provided.