A facile synthesis of steroidal pyrazoles, isoxazoles and pyrimidines from testosterone

959-966Synthesis of 17-hydroxy-androst-4-eno[3,2-c]pyrazole 3, 17-hydroxy-androst-4-eno[3,2-c]-[1' H]-5'-methylthiopyrazole 4, 17-hydroxy-androst-4-eno[2,3-d]isoxazole 5, 17-hydroxy-androst-4-eno[2,3-d] -[1' H]-3'-methylthio isoxazole 6, 17bhydroxy-androst-4-eno[3,2-d]-2'-amino-6'-ethoxypyrimidine 7, 17,2'-dihydroxy-androst-4-eno[3,2-d]-6'-ethoxypyrimidine 8, 17-hydroxy-androst-4-eno[3,2-d]-2'-thiolo-6'-ethoxypyrimidine 9, 17-hydroxy-4-androsteno[3,2-d]-2'-amino-6'­ethoxypyrimidine 10, 17,2'-Dihydroxy-4-androsteno[3,2-d]-6'-ethoxypyrimidine 11 and 17-hydroxy-4-androsteno[3,2-d]­2'-thiolo-6'-ethoxypyrimidine 12, from 2-ethoxymethylene-4-androsten-3-one 1 and 2-bis(methylthio)methylene-4-androsten­3-one 2 are reported

<span style="font-size:12.0pt;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-ansi-language: EN-IN;mso-fareast-language:EN-IN;mso-bidi-language:AR-SA" lang="EN-IN">Synthesis of pyrazolo [3,2 - <i style="mso-bidi-font-style:normal">c</i>] cholest - 4-ene derivatives from cholesterol</span>

847-849<span style="font-size:12.0pt;font-family: " times="" new="" roman";mso-fareast-font-family:"times="" roman";mso-ansi-language:="" en-in;mso-fareast-language:en-in;mso-bidi-language:ar-sa"="" lang="EN-IN">Synthesis of pyrazolo [3,2 -c] cholest -4 - ene 3 and [1'H] - 5' - (methylthio) pyrazolo [3,2- c] cholest - 4 - ene 5 from 2 - ethoxymethylene - 4 - cholesten - 3 - one 2 and 2 – bis (methylthio) methylene -4 - cholesten - 3 - one 4, respectively, are reported.</span

Antifungal and phytochemical studies of Eupatorium birmanicum DC.

1868-1872The isolation of coumarin, β-sitosterol and β-sitosterol-D-glucoside from the chloroform extract; and o-coumaric acid, cerebroside 1, ceramide 2, and quercetin-3-o-rutinoside 3 from the methanol extract of the leaves of Eupatorium birmanicum DC. along with the antifungal study of the chloroform and methanol extracts from the plant are reported. The structures of the isolated compounds are characterized by different spectroscopic methods