| Title:  Retamine CAS Registry Number:  2122-29-4 CAS Name:  Dodecahydro-7,14-methano-2H,6H-dipyrido[1,2-a:1¢,2¢-e][1,5]diazocin-1-ol Molecular Formula:  C15H26N2O Molecular Weight:  250.38 Percent Composition:  C 71.95%, H 10.47%, N 11.19%, O 6.39% Literature References:  From bark and young branches of Genista sphaerocarpa Lam. (Retama sphaerocarpa (Lam.) Boiss.), Leguminosae.  Isoln:  Battandier, Malosse, Compt. Rend. 125, 360, 450 (1897); Ribas et al., An. Fis. Quim. 42, 516 (1946), C.A. 41, 4894c (1947).  Structure:  Bohlmann et al., Ber. 98, 659 (1965).  Synthesis:  Bohlmann et al., ibid. 653.  Stereochemistry:  Ribas et al., Tetrahedron Lett. 1965, 3181. Properties:  Bitter crystals from alc, mp 165-166°.  [a]D20 +46.2° (c = 1.017 in abs ethanol).  Practically insol in water; slightly sol in ether; sol in chloroform, alcohol, methanol; very sol in benzene. Melting point:  mp 165-166° Optical Rotation:  [a]D20 +46.2° (c = 1.017 in abs ethanol)   Derivative Type:  Hydrochloride  Properties:  mp 272-273°. Melting point:  mp 272-273°   |